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  • 1
    Monograph available for loan
    Monograph available for loan
    New York : Cambridge University Press
    Call number: AWI A3-10-0002
    Type of Medium: Monograph available for loan
    Pages: 480 S.
    ISBN: 9780521761055
    Language: English
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  • 2
    Call number: ZSP-553-198,1
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 79 S. : Ill., Kt.
    ISBN: 8742100925
    Series Statement: Meddelelser om Grønland 198,1
    Language: English
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  • 3
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-590
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: 12
    Pages: Online-Ressource (88 S.).
    Series Statement: Berichte zur Polar- und Meeresforschung 590
    Language: English
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  • 4
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-591
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: 12
    Pages: Online-Ressource (64 S.). : Ill., graph. Darst.
    Series Statement: Berichte zur Polar- und Meeresforschung 591
    Language: English
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  • 5
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-592
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: 12
    Pages: Online-Ressource.
    Series Statement: Berichte zur Polar- und Meeresforschung 592
    Language: English
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  • 6
    Call number: AWI P6-10-0062 ; AWI P6-11-0002
    Description / Table of Contents: This volume provides a comprehensive, up-to-date account of how the physical and biological environment of the Antarctic continent and Southern Ocean has changed from Deep Time until the present day. It also considers how the Antarctic environment may change over the next century in a world where greenhouse gas concentrations are much higher than occurred over the last few centuries. The Antarctic is a highly coupled system with non-linear interactions between the atmosphere, ocean, ice and biota, along with complex links to the rest of the Earth system. Inpreparing this volume our approach has been highly cross-disciplinary, with the goal of reflecting the importance of the continent in global issues, such as sea level rise, the separation of natural climate variability from anthropogenic influences, food stocks, biodiversity and carbon uptake by the ocean. One hundred experts in Antarctic science have contributed and drafts of the manuscript were reviewed by over 200 scientists. We hope that it will be of value to all scientists with an interest in the Antarctic continent and the Southern Ocean, policy makers and those concerned with the deployment of observing systems and the development of climate models.
    Type of Medium: Monograph available for loan
    Pages: XXVIII, 526 S. : Ill., graph. Darst., Kt.
    ISBN: 9780948277221
    Language: English
    Note: CONTENTS: PREFACE EXECUTIVE SUMMARY 1 THE ANTARCTIC ENVIRONMENT AND THE GLOBAL SYSTEM 1.1 THE PHYSICAL SETTING 1.2 THE ANTARCTIC CRYOSPHERE 1.3 THE ROLE OF THE ANTARCTIC IN THE GLOBAL CLIMATE SYSTEM 1.4 OBSERVATIONS FOR STUDIES OF ENVIRONMENTAL CHANGE IN THE ANTARCTIC 1.5 THE CLIMATE OF THE ANTARCTIC AND ITS VARIABILITY 1.6 BIOTA OF THE ANTARCTIC 1.6.1 Terrestrial 1.6.2 Marine 2 OBSERVATIONS, DATA ACCURACY AND TOOLS 2.1 OBSERVATIONS, DATA ACCURACY AND TOOLS 2.1.1 Introduction 2.1.2 Meteorological and ozone observing in the Antarctic 2.1.3 In-situ ocean observations 2.1.4 Sea ice observations 2.1.5 Observations of the ice sheet and permafrost 2.1.6 Sea level 2.1.7 Marine biology 2.1.8 Terrestrial biology 2.1.9 Models 2.2 FUTURE DEVELOPMENTS AND RESEARCH NEEDS 3 ANTARCTIC CLIMATE AND ENVIRONMENT HISTORY IN THE PREINSTRUMENTAL PERIOD 3.1 INTRODUCTION 3.2 DEEP TIME 3.2.1 The Greenhouse world: from Gondwana breakup to 34 million years 3.2.2 Into the Icehouse world: the last 34 million years 3.3 THE LAST MILLION YEARS 3.3.1 Glacial interglacial cycles: the ice core record 3.3.2 The transition to Holocene interglacial conditions: the ice core record 3.3.3 Deglaciation of the continental shelf, coastal margin and continental interior 3.3.4 Antarctic deglaciation and its impact on global sea level 3.3.5 Sea ice and climate 3.4 THE HOLOCENE 3.4.1 Holocene climate change: regional to hemispheric perspectives 3.4.2 Changes in sea ice extent through the Holocene 3.4.3 Regional patterns of Holocene climate change in Antarctica 3.5 BIOLOGICAL RESPONSES TO CLIMATE CHANGE 3.5.1 The terrestrial environment 3.5.2 The marine environment 3.4.3 Regional patterns of Holocene climate change in Antarctica 3.6 CONCLUDING REMARKS 4 THE INSTRUMENTAL PERIOD 4.1 INTRODUCTION 4.2 CHANGES OF ATMOSPHERIC CIRCULATION 4.2.1 Modes of variability ..? 4.2.2 Depression tracks 4.2.3 Teleconnections 4.3 TEMPERATURE 4.3.1 Surface temperature 4.3.2 Upper air temperature changes 4.3.3 Attribution 4.4 CHANGES IN ANTARCTIC SNOWFALL OVER THE PAST 50 YEARS 4.4.1 General spatial and temporal characteristics of Antarctic snowfall 4.4.2 Long-term Antarctic snowfall accumulation estimates 4.4.3 Recent trends in Antarctic snowfall 4.5 ATMOSPHERIC CHEMISTRY 4.5.1 Antarctic stratospheric ozone in the instrumental period 4.5.2 Antarctic tropospheric chemistry 4.5.3 Aerosol, clouds and radiation 4.6 THE SOUTHERN OCEAN 4.6.1 Introduction 4.6.2 Australian sector 4.6.3 The Amundsen/Bellingshausen Seas 4.6.4 Variability and change in Ross Sea shelf waters 4.6.5 The Weddell Sea sector 4.6.6 Small-scale processes in the Southern Ocean 4.6.7 Dynamics of the circulation and water masses of the ACC and the polar gyres from model results 4.7 . ANTARCTIC SEA ICE COVER DURING THE INSTRUMENTAL PERIOD 4.7.1 Introduction 4.7.2 Sea ice cover in the pre-satellite era 4.7.3 Variability and trends in sea ice using satellite data 4.8 THE ICE SHEET AND PERMAFROST 4.8.1 Introduction 4.8.2 The Antarctic Peninsula 4.8.3 West Antarctica 4.8.4 East Antarctica 4.8.5 Calving 4.8.6 Sub-glacial water movement 4.8.7 Other changes in the ice sheet 4.8.8 Attribution of changes to the ice sheet 4.8.9 Conclusions regarding the ice sheet 4.8.10 Changes in Antarctic permafrost and active layer over the last 50 years 4.9 LONG TERM SEA LEVEL CHANGE 4.10 MARINE BIOLOGY 4.10.1 The open ocean system 4.10.2 Sea ice ecosystems 4.10.3 ENSO links and teleconnections to vertebrate life histories and population 4.10.4 Invertebrate physiology 4.10.5 Seasonality effect on the high Antarctic benthic shelf communities? 4.10.6 Macroalgal physiology and ecology 4.10.7 Marine/terrestrial pollution 4.11 BIOGEOCHEMISTRY - SOUTHERN OCEAN CARBON CYCLE RESPONSE TO HISTORICAL CLIMATE CHANGE 4.11.1 Introduction 4.11.2 CO2 fluxes in the Southern Ocean 4.11.3 Historical change - observed response 4.11.4 Historical change - simulated view 4.11.5 Changes in CO2 inventories 4.11.6 Concluding remarks 4.12 TERRESTRIAL BIOLOGY 5 THE NEXT 100 YEARS 5.1 INTRODUCTION 5.2 CLIMATE CHANGE 5.2.1 IPCC scenarios 5.2.2 Climate models 5.2.3 Atmospheric circulation 5.2.4 Temperature change over the Twenty First Century 5.2.5 Precipitation change over the Twenty First Century 5.2.6 Antarctic stratospheric ozone over the next 100 years 5.3 OCEAN CIRCULATION AND WATER MASSES 5.3.1 Simulation of present-day conditions in the Southern Hemisphere 5.3.2 Projections for the Twenty First Century 5.3.3 Long-term evolution of the Southern Ocean 5.3.4 Conclusions 5.4 SEA ICE CHANGE OVER THE TWENTY FIRST CENTURY 5.5 THE TERRESTRIAL CRYOSPHERE 5.5.1 Introduction 5.5.2 East Antarctic ice sheet 5.5.3 West Antarctic ice sheet 5.5.4 Antarctic Peninsula 5.5.5 Conclusions 5.5.6 Summary and needs for future research 5.6 EVOLUTION OF ANTARCTIC PERMAFROST 5.7 PROJECTIONS OF SEA LEVEL IN ANTARCTIC AND SOUTHERN OCEAN WATERS BY 2100 5.7.1 Regional projections of mean sea-level rise 5.8 BIOGEOCHEMISTRY - RESPONSE OF THE SOUTHERN OCEAN CARBON CYCLE TO FUTURE CLIMATE CHANGE 5.8.1 Background 5.8.2 Future Southern Ocean carbon response 5.8.3 Response to increased CO2 uptake 5.8.4 Concluding remarks 5.9 BIOLOGY 5.9.1 Terrestrial Biology 5.9.2 Marine Biology 5.9.3 The Antarctic marine ecosystem in the year 2100 6 RECOMMENDATIONS 7 REFERENCES.
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  • 7
    Series available for loan
    Series available for loan
    [Zürich] : IAHS (ICSI)
    Associated volumes
    Call number: AWI G7-12-0031
    In: Glacier mass balance bulletin
    Type of Medium: Series available for loan
    Pages: 96 S. : Ill., graph. Darst., Kt.
    Language: English
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  • 8
    Series available for loan
    Series available for loan
    Associated volumes
    Call number: ZSP-691-1984
    In: Research in Svalbard
    Type of Medium: Series available for loan
    Pages: 180 S.
    Language: English
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  • 9
    Series available for loan
    Series available for loan
    Koebenhavn : Grønlands Geol. Undersøgelse
    Associated volumes
    Call number: ZSP-683-64
    In: Rapport = Report
    Description / Table of Contents: Pollen analysis and radiocarbon dating of lake sediment cores from four localities in the Frederikshåb district, South-West Greenland, provide a chronology of vegetation changes in the area since c. 1000 B. P. An initial pioneer phase with the early development of some heath communities followed by a mid postglacial phase in which there is the successive appearance of woody scrub species. A final phase shows the decline of some of these. This is interpreted as a general response to a broad amplitude fluctuation in climate, with its optimal period lying between c. 7600 and 3200 B.P. The detailed composition of the vegetation however is influenced by immigration phenomena, with the appearance of many species lagging behind the attainment of their climatic tresholds. Detailed consideration is given to the possibility of Alnus crispa being present as a scrub component during the climatic optimum.
    Type of Medium: Series available for loan
    Pages: 26 S. : Ill., graph. Darst., Kt. + 4 Beil.
    Series Statement: The Geological Survey of Greenland : Report 64
    Language: English
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  • 10
    Call number: ZSP-683-59
    In: Rapport = Report
    Description / Table of Contents: Shell-bearing marine sediments in the Nordre Strømfjord area belong to two lithofacies, calcareous sandy gravels and calcareous muddy sands, and to four biofacies comparable to modern communities and related to the sediment lithology: epifaunal benthic and infaunal benthic facies, a current reworked 'mixed' facies and a Portlandia - Propeamussium facies. Radiocarbon dates on nine samples provide a poorly defined model of the glacio-isostatic emergence of the region. The implications of such models and their physical validity are considered in the context of these and other data, and it is suggested that curves for uplift deceleration are a useful means of obtaining the exponential constant k.
    Type of Medium: Series available for loan
    Pages: 20 S. : graph. Darst., Kt.
    Series Statement: The Geological Survey of Greenland : Report 59
    Language: English
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  • 11
    Monograph available for loan
    Monograph available for loan
    Copenhagen : Nyt Nordisk Forl.
    Associated volumes
    Call number: ZSP-553-9
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 36 S. : Ill.
    ISBN: 8717029635
    ISSN: 0106-1054
    Series Statement: Meddelelser om Grønland : Bioscience 9
    Language: English
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  • 12
    Call number: ZSP-168-593
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: 12
    Pages: Online-Ressource.
    Series Statement: Berichte zur Polar- und Meeresforschung 593
    Language: English
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  • 13
    Call number: ZSP-405a-09-0019
    In: JAXA Research and Development Report
    Type of Medium: Monograph available for loan
    Pages: 14 S. : graph. Darst.
    Series Statement: JAXA Research and Development Report RR-08-003E
    Language: English
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  • 14
    Call number: AWI P6-09-0022 ; ZSP-597-175 ; ZSP-597-175(2. Ex.) ; ZSP-597-175(3. Ex.)
    In: Skrifter
    Type of Medium: Monograph available for loan
    Pages: 130 S. : Ill., graph. Darst., Kt. + 2 Kt.-Beil.
    ISBN: 8290307160
    Series Statement: Skrifter / Norsk Polarinstitutt 175
    Language: English
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  • 15
    Monograph available for loan
    Monograph available for loan
    Utrecht
    Call number: AWI P6-09-0023
    Type of Medium: Monograph available for loan
    Pages: XIII, 106 S.
    ISBN: 9039304238
    Language: English
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  • 16
    Call number: AWI S1-09-0042
    In: Texts in applied mathematics
    Type of Medium: Monograph available for loan
    Pages: XIV, 500 S. : zahlr. graph. Darst.
    ISBN: 9780387720654
    Series Statement: Texts in applied mathematics 54
    Language: English
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  • 17
    Call number: AWI G2-09-0036
    In: Manuals and guides
    Type of Medium: Monograph available for loan
    Pages: 99 S. : Ill., graph. Darst.
    Series Statement: Manuals and guides / Unesco, Intergovernmental Oceanographic Commission 53
    Language: English
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  • 18
    Call number: ZSP-387-6
    In: International project on paleolimnology and late cenozoic climate
    Type of Medium: Series available for loan
    Pages: 171 S. : Ill., graph. Darst.
    Language: English
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  • 19
    Call number: ZSP-387-7
    In: International project on paleolimnology and late cenozoic climate
    Type of Medium: Series available for loan
    Pages: 179 S. : Ill., graph. Darst.
    Language: English
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  • 20
    Monograph available for loan
    Monograph available for loan
    Hoboken : Wiley-Interscience
    Call number: AWI S2-11-0056
    Description / Table of Contents: From a preeminent authority-a modern and applied treatment of multiway data analysis This groundbreaking book is the first of its kind to present methods for analyzing multiway data by applying multiway component techniques.
    Type of Medium: Monograph available for loan
    Pages: XXI, 579 S. : Ill., graph. Darst.
    ISBN: 9780470164976
    Series Statement: Wiley series in probability and statistics
    Language: English
    Note: Contents: Part 1: Data, Models, and Algorithms. - 1. Overture. - 2. Overview. - 3. Three-way and multiway data. - 4. Component models for fully-crossed designs. - 5. Algorithms for multiway models. - Part 2: Data Handling, Model Selection, and Interpertation. - 6. Preprocessing. - 7. Missing data in multiway analysis. - 8. Model and dimensionality selection. - 9. Interpreting component models. - 10. Improving interpretation through rotations. - 11. Graphical displays for components. - 12. Residuals, outliers, and robustness. - Part 3: Multiway Data and Their Analysis. - 13. Modeling multiway profile data. - 14. Modeling multiway rating scale data. - 15. Exploratory multivariate longitudinal analysis. - 16. Three-mode clustering. - 17. Multiway contingency tables. - 18. Three-way binary data. - 19. From three-way to four-way data and beyond. - Appendix A: Standard notation for mulitway analysis. - Appendix B: Biplots and their interpretation.
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  • 21
    Call number: AWI G2-09-0037
    In: Manuals and guides
    Type of Medium: Monograph available for loan
    Pages: 143 S. : Ill., graph. Darst.
    Series Statement: Manuals and guides / Unesco, Intergovernmental Oceanographic Commission 50
    Language: English
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  • 22
    Series available for loan
    Series available for loan
    Silver Spring, MD : U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service
    Associated volumes
    Call number: ZSP-582-59
    In: NOAA atlas NESDIS
    In: International ocean atlas and information series
    Description / Table of Contents: This Atlas and accompanying CD-ROM contains oceanographic data collected by the scientific specialists of the Academy of Sciences, Ministery of Fisheries, and the Hydrometeorological Service of Russia in the Sea of Azov and the adjacent part of the Black Sea during 1913 - 2004. Monthly data distribution plots are provided for each year. Monthly climatic maps of temperature and salinity at the sea surface and depth levels of 5 and 10 meters are computed using opjective analysis. Intra-annual variability of temperature and salinity of the Sea of Azov is discussed with respect to the quality control of the primary data. The Atlas also includes, in electronic format, selected copies of rare books and articles about the history of the Sea of Azov exploration and climate studies as well as photos, which provide information about the people and environment of this region.
    Type of Medium: Series available for loan
    Pages: 105 S. : graph. Darst., Kt. + 1 CD-ROM
    Series Statement: NOAA atlas NESDIS 59
    Language: English
    Note: Text. engl. und russ. - Teilw. in kyrill. Schr.
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  • 23
    Series available for loan
    Series available for loan
    Hanover, NH : Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-327
    In: Research report / Cold Regions Research and Engineering Laboratory
    Description / Table of Contents: CONTENTS: Preface. - Introduction. - Theory of formation, growth and precipitation of ice crystals. - Fog characteristics. - Liquid water content. - Size distribution of liquid water droplets. - Results and discussion. - Sudden expansion system. - Continuous flow. - Conclusions and recommendations. - Conclusions. - Recommendations. - Literature cited. - Abstract.
    Description / Table of Contents: Two compressed air systems for glaciating supercooled clouds were studied in the laboratory. The first system used the sudden expansion of compressed air and was found to be most efficient at 27 psig producing an average of 5.2 x 10^8 ice crystals per cm^3 of air. The second system used a continuous flow of air through nozzles of various designs, of which the supersonic nozzle was found to be the most efficient, producing a maximum of 2.5 x 10^8 crystals per cm^3 of air at 27 psig. The above data were obtained at an ambient temperature of -4°C, but data for other temperatures and pressures were obtained and are presented in the text.
    Type of Medium: Series available for loan
    Pages: iii, 11 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 327
    Language: English
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  • 24
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-313
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Nomenclature. - Introduction. - Funicular regime. - Grain growth. - Grain contacts. - Densification. - Pendular regime. - Discussion and conclusions. - Literature cited. - Abstract.
    Description / Table of Contents: Grain growth, bond growth and densification of wet snow are described in terms of the distribution of equilibrium temperature in the snow matrix. At high water saturations the equilibrium temperature increases with grain size; hence, small particles melt away as large particles grow. Melting also occurs at the intergrain bonds, causing a low strength and rapid densification. At low saturations the equilibrium temperature is determined by the capillary pressure and the particle sizes have only a second order effect. Therefore, grain growth proceeds slowly and, even at large overburden pressures, no intergrain melting occurs. At low saturations the water "tension" acts through a finite area, thus large attractive forces exist between the grains, and the strength of the snow matrix is large.
    Type of Medium: Series available for loan
    Pages: v, 13 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 313
    Language: English
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  • 25
    Series available for loan
    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-308
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Sea ice as a material. - Experimental procedures. - Results and analysis. - Conclusion. - Literature cited. - Appendix A. Error analysis. - Abstract.
    Description / Table of Contents: An investigation is made into the determination of the relationship between the extinction coefficient and the salinity of sea ice. A HeNe laser is used to propagate a beam of red light, of wavelength 6328Å, through a series of ice samples at -20°C. The optical extinction coefficients were calculated and plotted against the measured salinities. The results of the experiment indicated an exponential relationship between extinction coefficient and salinity. The relationship may be described by the equation: y = 2.41 + 0.001 exp (1.19x) where y is the extinction coefficient and x is the salinity.
    Type of Medium: Series available for loan
    Pages: iii, 15 Seiten , Illutrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 308
    Language: English
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  • 26
    Series available for loan
    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-300
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Sampling. - Byrd Station. - Plateau Station. - Camp Century. - lnge Lehmann. - Grain-crystal relations. - Analytical techniques. - Thin sections. - Crystal size measurements. - Results and discussion. - Literature cited. - Appendix A: Crystal size as a function of depth and age in the Antarctic and Greenland ice sheets. - Abstract.
    Description / Table of Contents: The growth of ice crystals as a function of depth and time in polar firn and glacier ice has been investigated at a number of locations in Antarctica and Greenland. Thin sections of snow and ice were used to measure crystal size variations which showed, in all cases, that crystal size increases essentially linearly with the age of samples. Crystal growth rates are strongly temperature dependent. At Camp Century, Greenland, where the firn temperature is -24°C, crystals grow approximately 23 times faster than at Plateau Station, Antarctica, where the in situ temperature is -57°C. Extrapolation of the existing data indicates that crystal growth rates in polar firn and ice could be expected to vary by about two orders of magnitude over the temperature range -60°C to -15°C. Examination of the changes in the pore-crystal structure relationships to a dpeth of 100 m at Camp Century shows that these changes closely resemble those occuring in the full-scale isothermal sintering of powder compacts.
    Type of Medium: Series available for loan
    Pages: iii, 19 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 300
    Language: English
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  • 27
    Series available for loan
    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army, Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-292
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - General introduction. - A. Pore water freezing data from differential thermal analysis. - Apparatus and technique. - Results. - Discussion. - Conclusions. - B. Indirect determination of pore water freezing data for rocks. - Air penetration tests. - Mercury penetration measurements. - Calculation of unfrozen water content and freezing point depression. - Comparison of calculated and measured freezing characteristics. - Conclusions. - C. Electrical conductivity measurements. - Procedures. - Results. - Discussion of results. - D. Thermal strains in cold rock. - Preliminary tests. - Recording dilatometer. - Test procedure. - Results. - Discussion. - Conclusions. - E. lsothermal compressibility of cold rocks. - Test method. - Test results. - Discussion of results. - Conclusion and recommendations. - General summary of results. - Literature cited. - Appendix A: Water adsorption. - Appendix B: Adsorption and absorption by Rochester shale. - Appendix C: Low temperature conductivity of saturated wood. - Abstract.
    Description / Table of Contents: The phase composition of pore water in three types of rock subjected to temperature below 0°C was explored by a variety of techniques. Freezing point depression was measured as a function of water content by differential thermal analysis, the results yielding relationships between unfrozen water content and temperature. In an effort to avoid the practical difficulties involved in differential thermal analysis, attempts were made to determine freezing characteristics indirectly by air penetration and mercury penetration techniques applied at ordinary room temperatures. Electrical conductivity measurements were made as a function of temperature down to -195° C in an attempt to obtain information on characteristics of interfacial water films at low temperatures. Thermal strain was measured as a function of temperature in order to detect direct mechanical effects associated with phase changes, chiefly strain discontinuities brought about by volume changes in the pore water during rapid freezing and thawing. Finally, isothermal compressibility measurements, with pressures up to 27 kb, were made at - 10°C so as to determine whether the rock underwent step changes in volumetric strain at pressures corresponding to those of the phase boundaries for ice polymorphs.
    Type of Medium: Series available for loan
    Pages: v, 61 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 292
    Language: English
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  • 28
    Series available for loan
    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-287
    In: Research report
    Description / Table of Contents: Hugoniot curves were generated from simultaneous measurements of shock and free-surface velocities, obtained from samples of frozen Fairbanks (Fox) silt, using the exploding wire technique. The abrupt change in slope of the Us-Up Hugoniot is indicative of a phase change. The shape of the P-V Hugoniot suggests that the transformation begins immediately but does not go to completion. This means that, although the pressure lies slightly above the Rayleigh line through the mixed phase region, the slope does not increase as rapidly as it would if the material had stayed in the initial phase.
    Description / Table of Contents: CONTENTS: Preface. - Conversion factors. - Introduction. - Test procedure. - Test results. - Discussion. - Literature cited. - Appendix A: Hugoniot data. - Abstract.
    Type of Medium: Series available for loan
    Pages: iv, 13 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 287
    Language: English
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  • 29
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-286
    In: Research report
    Description / Table of Contents: CONTENTS : Introduction. - Basic analysis. - Part I: Far field surface motion. - A single oscillating source. - A group of forces over a finite area. - Part II: Near field study. - Motion at center of source. - Approximation of displacements. - Conclusion. - Literature cited. - Abstract.
    Description / Table of Contents: Wave propagation generated by vibratory load on a homogeneous, isotropic, linear viscoelastic half-space is studied. The effect of a single concentrated force and a group of forces applied over a circular area has been examined and solutions of the displacement functions are presented. In the case of the group forces, the three types of force distribution used by Reissner and Sung were employed. At a great distance (far field) from the applied load, surface displacements are reduced to closed form expressions. A field method based on these results is recommended for determining the complex modulus and the damping property of a viscoelastic material. For areas near the source (near field), numerical procedures were employed to evaluate the integral solution. To facilitate the application, two simplified versions are provided for calculating the center displacement under the load. They both provide good approximation to the integral solution and, most important of all, they speed up the computation enormously
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    Pages: iv, 33 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 286
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  • 30
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    Hanover, NH : Corps of Engineers, U.S. Army, Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-293
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - What is a spline function?. - 1. Determination of a cubic spline. - 2. Effect of end conditions. - 3. Some properties of cubic splines. - Application to a lake temperature observation. - 1. Observed temperatures. - 2. Integral residuals of the observed temperatures. - 3. Theoretical temperature distributions. - Conclusion. - Literature cited.
    Description / Table of Contents: Numerical differentiation by use of classical interpolation formulas yields a diversity of results. Consistent numerical differentiation can be performed by using a spline function as an interpolating function. As an application, temperature observed in a lake is numerically differentiated as a function of time and of depth by use of cubic splines. The deviation of the actual heat transfer mechanism from vertical heat conduction can thus be detected. The reliability of numerical differentiation by spline functions is manifest in this example.
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    Pages: iii, 18 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 293
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  • 31
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-291
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Study lake. - Previous work at Post Pond. - Methods and procedures. - Results and discussion. - Summer stratification. - Autumnal mixing and thermocline disappearance. - Winter period of ice cover. - Spring circulation. - Summary and conclusions. - Literature cited. - Appendix A: Ice sample analysis. - Abstract.
    Description / Table of Contents: The temperature structure of Post Pond, a small (46.6 hectares), mid-latitude, dimictic lake in west-central New Hampshire, was studied during autumn,winter and spring of 1968-1969. The lake was instrumented over its maximum depth (11.7 m) with a string of 24 thermocouples which recorded hourly temperatures. Temperatures in 9 m of sediments underlying the lake were measured with a thermistor probe. Secondary and tertiary thermocline development in the epilimnion occurred during short warming periods in the early autumn. The autumn overturn lasted 25 days, whereas the spring overturn lasted only 4 days. The entire lake mixed isothermally in the autumn to 3.2°C. During the period of ice cover, the lower 5 m of water gained approximately 51.5 cal/cm^2, which was supplied by stored heat in the bottom sediments. A steady-state thermal gradient of 0.07°C/m was found for the deeper sediments underlying the lake during ice cover. Late winter cooling of bottom water under the ice cover may be the result of snowmelt in areas adjacent to the lake causing activation of groundwater influx. Melting of the clear ice portion of the ice cover was primarily the result of heat supplied to the lake from snowmelt water, and occurred on the underside of the ice sheet. Thermal instability of the water mass persisted for 9 days during peak snowmelt runoff; this can be partially explained by an increase in dissolved solids with depth.
    Type of Medium: Series available for loan
    Pages: 23 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 291
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  • 32
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-289
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Materials and methods. - Materials. - Methods. - Results and discussion. - Literature cited. - Appendix A.
    Description / Table of Contents: Clay mineral and soil samples were subjected to neutron activation analysis in order to identify and measure the abundances of trace elements having radionuclides with long half-lives. After exposure of cadmium-shielded samples to neutrons for a period of five days, the gamma radiation associated with the decay of the resulting radionuclides was observed using a high resolution Ge(Li) detector. Trace elements identified without prior chemical separation using the gross gamma-ray spectra included Fe, Zn, Ti, Ni, Co, Cr, Sr, Ba, Ca, La, Eu, Tb, Hf, Ta, Th, and U. It should be possible to determine quantitatively the amount of each of these elements. This is a considerable improvement over the number of elements determined in soils previously by activation analysis without destructive chemical treatments.
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    Pages: iii, 27 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 289
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  • 33
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-283
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Determination of CEC of earth materials using isotopic exchange. - Determination of CEC of earth materials using isotopic labeling. - Appendix: Procedure for determination of CEC of earth materials by isotopic labeling.
    Description / Table of Contents: Two radiochemical methods were investigated for determining the cation exchange capacity of earth materials having a wide range in physicochemical properties. The first method attempted was unsuccessful but involved determination of the radioactivity of a 22Na-NaOAc solution in isotopic equilibrium with a Na+-saturated mineral phase. The logic of this method is presented in order to illustrate principles of isotopic exchange in mineral systems. The method finally adopted is based upon determination of the radioactivity of a salt-free, Na+-saturated mineral sample prepared using a radioactive NaOAc solution with a known 22Na-NaOAc composition. This method is less time-consuming and more accurate than the conventional ammonium acetate method for cation exchange capacity determinations.
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    Pages: iii, 12 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 283
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  • 34
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-281
    In: Research report
    Description / Table of Contents: The solution for the vibration of an elastic plate floating on water is developed. The water is assumed to be incompressible and to have irrotational flow. In free vibration upon release of the plate, the maximum negative rebound of the deflection is 25%. For forced vibration, the steady state part of the solution shows that there is a frequency at which the deflection is a maximum. The stresses become a maximum at a frequency higher than the one for deflection. These critical frequencies depend upon the plate's characteristic length and the depth of the water. For most situations the critical frequency for stress is less than 0.2 cycle per second. At this critical frequency the stresses are amplified over the static case by a factor less than 10%.
    Type of Medium: Series available for loan
    Pages: ii, 9 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 281
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  • 35
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-244
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Summer temperature data. - Station network and history. - Parameters for data reduction. - Analysis of summer temperatures. - Temperature trends. - Summer temperatures in the highlands. - Lapse rates for summer temperatures. - Spatial variation of summer temperatures. - Summary. - Literature cited. - Appendix A. - Appendix B. - Appendix C. - Abstract.
    Description / Table of Contents: Annual degree-day summations over bases of 43°F and 50°F in 15-day periods from May through August are given for the period of record for five interior Alaska climatic stations. Average temperature and precipitation data are included. Patterns of summer temperature in interior Alaska are analyzed in terms of historical, elevational and areal differences. Since 1900, summer temperatures show little long-term change but significant short-term changes. In contrast, winter temperatures show considerable fluctuations, which are reflected in mean annual temperatures to a much greater degree than are summer temperature fluctuations. Average summer lapse rates for the 1600 to 3300 and 3300 to 6600-ft levels were 3.4 and 3.7°F/1000 ft, respectively, based on timberline temperature observations and on upper air data from Fairbanks. Correlation analysis of daily and monthly average July temperatures indicates areas of uniformity with respect to temperature variation. This provides information on lowland climatic stations that are representative of highland locations, especially the Yukon-Tanana Uplands
    Type of Medium: Series available for loan
    Pages: iv, 37 Seiten , Illustrationen, Karten
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 244
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  • 36
    Call number: ZSP-387-8
    In: International project on paleolimnology and late cenozoic climate
    Type of Medium: Series available for loan
    Pages: 128 S.
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  • 37
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Call number: ZSP-168-557
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: 12
    Pages: 166 S. : Ill., graph. Darst., Kt.
    Series Statement: Berichte zur Polar- und Meeresforschung 557
    Language: English
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  • 38
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-558
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: 12
    Pages: 68 S. : Ill., graph. Darst. Kt.
    Series Statement: Berichte zur Polar- und Meeresforschung 558
    Language: English
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  • 39
    Call number: ZSP-168-587
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: 12
    Pages: Online-Ressource (104 S.).
    Series Statement: Berichte zur Polar- und Meeresforschung 587
    Language: English
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  • 40
    facet.materialart.12
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-589
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: 12
    Pages: Online-Ressource (50 S.).
    Series Statement: Berichte zur Polar- und Meeresforschung 589
    Language: English
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  • 41
    Call number: AWI G5-09-0039
    In: Developments in paleoenvironmental research
    Type of Medium: Monograph available for loan
    Pages: XVII, 418 S. : graph. Darst., Kt.
    ISBN: 9789048126729
    Series Statement: Developments in paleoenvironmental research 14
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  • 42
    Call number: AWI A12-13-0137
    Description / Table of Contents: The second edition of this internationally acclaimed text presents the latest developments in atmospheric science. It continues to be the premier text for both a rigorous and a complete treatment of the chemistry of the atmosphere, covering such pivotal topics as: chemistry of the stratosphere and troposphere; formation, growth, dynamics, and properties of aerosols; meteorology of air pollution; transport, diffusion, and removal of species in the atmosphere; formation and chemistry of clouds; interaction of atmospheric chemistry and climate; radiative and climatic effects of gases and particles; formulation of mathematical chemical/transport models of the atmosphere. All chapters develop results based on fundamental principles, enabling the reader to build a solid understanding of the science underlying atmospheric processes. Among the new material are three new chapters: Atmospheric radiation and photochemistry, gernal circulation of the atmosphere, and global cycles. In addition, the chapters Stratospheric chemistry, tropospheric chemistry, and organic atmospheric aerosols have been rewritten to reflect the latest findings. Readers familiar with the first edition will discover a text with new structures and new features that greatly aid learning. Many examples are set off in the text to help readers work through the application of concepts. Advanced material has been moved to appendices. Finally, many new problems, coded by degree of difficulty, have been added. A solutions manual is available. Throughly updated and restructured, the second edition of Atmospheric chemistry and physics is an ideal textbook for upper-level undergraduate and graduate students, as well as a reference for researchers in environmental engineering, meteorology, chemistry, and the atmospheric sciences.
    Type of Medium: Monograph available for loan
    Pages: xxviii, 1203 Seiten , Illustrationen
    Edition: Second edition
    ISBN: 9780471720188
    Series Statement: A Wiley-Interscience publication
    Language: English
    Note: CONTENTS: Preface to the Second Edition. - Preface to the First Edition. - 1 The Atmosphere. - 1.1 History and Evolution of the Earth's Atmosphere. - 1.2 Climate. - 1.3 The Layers of the Atmosphere. - 1.4 Pressure in the Atmosphere. - 1.4.1 Units of Pressure. - 1.4.2 Variation of Pressure with Height in the Atmosphere. - 1.5 Temperature in the Atmosphere. - 1.6 Expressing the Amount of a Substance in the Atmosphere. - 1.7 Spatial and Temporal Scales of Atmospheric Processes. - Problems. - References. - 2 Atmospheric Trace Constituents. - 2.1 Atmospheric Lifetime. - 2.2 Sulfur-Containing Compounds. - 2.2.1 Dimethyl Sulfide (CH3SCH3). - 2.2.2 Carbonyl Sulfide (OCS). - 2.2.3 Sulfur Dioxide (SO2). - 2.3 Nitrogen-Containing Compounds. - 2.3.1 Nitrous Oxide (N2O). - 2.3.2 Nitrogen Oxides (NO* = NO + NO2). - 2.3.3 Reactive Odd Nitrogen (NOy). - 2.3.4 Ammonia (NH3). - 2.4 Carbon-Containing Compounds. - 2.4.1 Classification of Hydrocarbons. - 2.4.2 Methane. - 2.4.3 Volatile Organic Compounds. - 2.4.4 Biogenic Hydrocarbons. - 2.4.5 Carbon Monoxide. - 2.4.6 Carbon Dioxide. - 2.5 Halogen-Containing Compounds. - 2.5.1 Methyl Chloride (CH3C1). - 2.5.2 Methyl Bromide (CH3Br). - 2.6 Atmospheric Ozone. - 2.7 Particulate Matter (Aerosols). - 2.7.1 Stratospheric Aerosol. - 2.7.2 Chemical Components of Tropospheric Aerosol. - 2.7.3 Cloud Condensation Nuclei (CCN). - 2.7.4 Sizes of Atmospheric Particles. - 2.7.5 Sources of Atmospheric Paniculate. - 2.7.6 Carbonaceous Particles. - 2.7.7 Mineral Dust. - 2.8 Emission Inventories. - 2.9 Biomass Burning. - Appendix 2.1 Air Pollution Legislation. - Appendix 2.2 Hazardous Air Pollutants (Air Toxics). - Problems. - References. - 3 Chemical Kinetics. - 3.1 Order of Reaction. - 3.2 Theories of Chemical Kinetics. - 3.2.1 Collision Theory. - 3.2.2 Transition State Theory. - 3.2.3 Potential Energy Surface for a Bimolecular Reaction. - 3.3 The Pseudo-Steady-State Approximation. - 3.4 Reactions of Excited Species. - 3.5 Termolecular Reactions. - 3.6 Chemical Families. - 3.7 Gas-Surface Reactions. - Appendix 3 Free Radicals. - Problems. - References. - 4 Atmospheric Radiation and Photochemistry. - 4.1 Radiation. - 4.1.1 Solar and Terrestrial Radiation. - 4.1.2 Energy Balance for Earth and Atmosphere. - 4.1.3 Solar Variability. - 4.2 Radiative Flux in the Atmosphere. - 4.3 Beer-Lambert Law and Optical Depth. - 4.4 Actinic Flux. - 4.5 Atmospheric Photochemistry. - 4.6 Absorption of Radiation by Atmospheric Gases. - 4.7 Absorption by O2 and O3 122. - 4.8 Photolysis Rate as a Function of Altitude. - 4.9 Photodissociation of O3 to Produce O and O(1D). - 4.10 Photodissociation of NO2. - Problems. - References. - 5 Chemistry of the Stratosphere. - 5.1 Overview of Stratospheric Chemistry. - 5.2 Chapman Mechanism. - 5.3 Nitrogen Oxide Cycles. - 5.3.1 Stratospheric Source of NO* from N2O. - 5.3.2 NO* Cycles. - 5.4 HO* Cycles. - 5.5 Halogen Cycles. - 5.5.1 Chlorine Cycles. - 5.5.2 Bromine Cycles. - 5.6 Reservoir Species and Coupling of the Cycles. - 5.7 Ozone Hole. - 5.7.1 Polar Stratospheric Clouds. - 5.7.2 PSCs and the Ozone Hole. - 5.7.3 Arctic Ozone Hole. - 5.8 Heterogeneous (Nonpolar) Stratospheric Chemistry. - 5.8.1 The Stratospheric Aerosol Layer. - 5.8.2 Heterogeneous Hydrolysis of N2O5. - 5.8.3 Effect of Volcanoes on Stratospheric Ozone. - 5.9 Summary of Stratospheric Ozone Depletion. - 5.10 Transport and Mixing in the Stratosphere. - 5.11 Ozone Depletion Potential. - Problems. - References. - 6 Chemistry of the Troposphere. - 6.1 Production of Hydroxyl Radicals in the Troposphere. - 6.2 Basic Photochemical Cycle of NO2, NO, and O3. - 6.3 Atmospheric Chemistry of Carbon Monoxide. - 6.3.1 Low NO* Limit. - 6.3.2 High NO* Limit. - 6.3.3 Ozone Production Efficiency. - 6.3.4 Theoretical Maximum Yield of Ozone from CO Oxidation. - 6.4 Atmospheric Chemistry of Methane. - 6.5 The NO* and NOy, Families. - 6.5.1 Daytime Behavior. - 6.5.2 Nighttime Behavior. - 6.6 Ozone Budget of the Troposphere and Role of NO*. - 6.6.1 Ozone Budget of the Troposphere. - 6.6.2 Role of NO*. - 6.7 Tropospheric Reservoir Molecules. - 6.7.1 H2O2, CH3OOH, and HONO. - 6.7.2 Peroxyacyl Nitrates (PANs). - 6.8 Relative Roles of VOC and NOx in Ozone Formation. - 6.8.1 Importance of the VOC/NOx Ratio. - 6.8.2 Ozone Isopleth Plot. - 6.9 Simplified Organic/NOx Chemistry. - 6.10 Chemistry of Nonmethane Organic Compounds in the Troposphere. - 6.10.1 Alkanes. - 6.10.2 Alkenes. - 6.10.3 Aromatics. - 6.10.4 Aldehydes. - 6.10.5 Ketones. - 6.10.6 α, β-Unsaturated Carbonyls. - 6.10.7 Ethers. - 6.10.8 Alcohols. - 6.11 Atmospheric Chemistry of Biogenic Hydrocarbons. - 6.12 Atmospheric Chemistry of Reduced Nitrogen Compounds. - 6.12.1 Amines. - 6.12.2 Nitriles. - 6.12.3 Nitrites. - 6.13 Atmospheric Chemistry (Gas Phase) of Sulfur Compounds. - 6.13.1 Sulfur Oxides. - 6.13.2 Reduced Sulfur Compounds (Dimethyl Sulfide). - 6.14 Tropospheric Chemistry of Halogen Compounds. - 6.14.1 Chemical Cycles of Halogen Species. - 6.14.2 Tropospheric Chemistry of CFC Replacements: Hydrofluorocarbons (HFCs) and Hydrochlorofluorocarbons (HCFCs). - Problems. - References. - 7 Chemistry of the Atmospheric Aqueous Phase. - 7.1 Liquid Water in the Atmosphere. - 7.2 Absorption Equilibria and Henry's Law. - 7.3 Aqueous-Phase Chemical Equilibria. - 7.3.1 Water. - 7.3.2 Carbon Dioxide-Water Equilibrium. - 7.3.3 Sulfur Dioxide-Water Equilibrium. - 7.3.4 Ammonia-Water Equilibrium. - 7.3.5 Nitric Acid-Water Equilibrium. - 7.3.6 Equilibria of Other Important Atmospheric Gases. - 7.4 Aqueous-Phase Reaction Rates. - 7.5 S(IV)-S(VI) Transformation and Sulfur Chemistry. - 7.5.1 Oxidation of S(IV) by Dissolved O3. - 7.5.2 Oxidation of S(IV) by Hydrogen Peroxide. - 7.5.3 Oxidation of S(IV) by Organic Peroxides. - 7.5.4 Uncatalyzed Oxidation of S(IV) by O2. - 7.5.5 Oxidation of S(IV) by O2 Catalyzed by Iron and Manganese. - 7.5.6 Comparison of Aqueous-Phase S(IV) Oxidation Paths. - 7.6 Dynamic Behavior of Solutions with Aqueous-Phase Chemical Reactions. - 7.6.1 Closed System. - 7.6.2 Calculation of Concentration Changes in a Droplet with Aqueous-Phase Reactions. - Appendix 7.1 Thermodynamic and Kinetic Data. - Appendix 7.2 Additional Aqueous-Phase Sulfur Chemistry. - 7.A.1 S(IV) Oxidation by the OH Radical. - 7.A.2 Oxidation of S(IV) by Oxides of Nitrogen. - 7.A.3 Reaction of Dissolved SO2 with HCHO. - Appendix 7.3 Aqueous-Phase Nitrite and Nitrate Chemistry. - 7.A.4 NOx Oxidation. - 7.A.5 Nitrogen Radicals. - Appendix 7.4 Aqueous-Phase Organic Chemistry. - Appendix 7.5 Oxygen and Hydrogen Chemistry. - Problems. - References. - 8 Properties of the Atmospheric Aerosol. - 8.1 The Size Distribution Function. - 8.1.1 The Number Distribution nN(Dp). - 8.1.2 The Surface Area, Volume, and Mass Distributions. - 8.1.3 Distributions Based on In Dp and log Dp. - 8.1.4 Relating Size Distributions Based on Different Independent Variables. - 8.1.5 Properties of Size Distributions. - 8.1.6 The Lognormal Distribution. - 8.1.7 Plotting the Lognormal Distribution. - 8.1.8 Properties of the Lognormal Distribution. - 8.2 Ambient Aerosol Size Distributions. - 8.2.1 Urban Aerosols. - 8.2.2 Marine Aerosols. - 8.2.3 Rural Continental Aerosols. - 8.2.4 Remote Continental Aerosols. - 8.2.5 Free Tropospheric Aerosols. - 8.2.6 Polar Aerosols. - 8.2.7 Desert Aerosols. - 8.3 Aerosol Chemical Composition. - 8.4 Spatial and Temporal Variation. - 8.5 Vertical Variation. - Problems. - References. - 9 Dynamics of Single Aerosol Particles. - 9.1 Continuum and Noncontinuum Dynamics: The Mean Free Path. - 9.2 The Drag on a Single Particle: Stokes' Law. - 9.2.1 Corrections to Stokes' Law: The Drag Coefficient. - 9.2.2 Stokes' Law and Noncontinuum Effects: Slip Correction Factor. - 9.3 Gravitational Settling of an Aerosol Particle. - 9.4 Motion of an Aerosol Particle in an External Force Field. - 9.5 Brownian Motion of Aerosol Particles. - 9.5.1 Particle Diffusion. - 9.5.2 Aerosol Mobility and Drift Velocity. - 9.5.3 Mean Free Path of an Aerosol Particle. - 9.6 Aer
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    Call number: ZSP-202-315
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Introduction. - Part 1:Mesoscale strain measurements on the Beaufort Sea pack ice. - Abstract. - Introduction. - Previous work. - Site location. - Results. - Correlation of synoptic aerial photography with measured strains. - Correlation of estimated wind stress and strain. - Conclusions. - Literature cited. - Part II: Structure of a multiyear pressure ridge. - Abstract. - Introduction. - Profiles. - Internal properties. - Largest ridge sail. - Conclusions. - Literature cited. - Part III: Top and bottom roughness of a multiyear ice floe. - Abstract. - Introduction. - Results. - Literature cited. - Part IV:Airphoto analysis of ice deformation in the Beaufort Sea Abstract. - Introduction. - Study area. - Method of analysis. - Ice deformations. - Net deformational changes. - Pressure ridge distribution. - Summary and conclusions. - Literature cited. - Part V: Data on morphological and physical characteristics of sea ice in the Beaufort Sea.
    Description / Table of Contents: Mesoscale strain measurements on the Beaufort Sea pack ice; Structure of a multiyear pressure ridge; Top and bottom roughness of a multiyear ice floe; Airphoto analysis of ice deformation in the Beaufort Sea; Data on morphological and physical characteristics of sea ice in the Beaufort Sea.
    Type of Medium: Series available for loan
    Pages: iii, 66 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 315
    Language: English
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  • 44
    Series available for loan
    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-309
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Symbols. - Introduction. - Physical setting. - Flow model. - Calculated flow. - Existing profile. - Proposed profiles. - Profile 1. - Profile 2. - Profile 3. - Profile 4. - Profile 5. - Profile 6. - Profile 7. - Total excavation. - Interpretation and conclusions. - Sources of error. - Recommendations. - Literature cited. - Appendix A. - Abstract.
    Description / Table of Contents: The Marcona Corporation and Kryolitselskabet ?resund, A/S (a Danish corporation) are cooperatively investigating the possibility of developing an open-pit mine along the edge of the Greenland Ice Cap. The response of the glacier to a sudden change in surface slope and thickness is calculated. The existing flow is diverted away from the mineral deposit but will increase when the excavation begins. It is calculated that 66 million cubic meters of ice must be removed in order to establish a stable profile beyond the pit. An additional 7.9 million cubic meters of ice must be removed yearly in order to maintain the profile.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 309
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  • 45
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-318
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Drilling and field observations. - Interpretation. - Implications for the feasibility study. - Conclusions. - Literature cited. - Abstract.
    Description / Table of Contents: Two holes were drilled through the Greenland ice sheet during 1973 and temperature measurements were made in one hole drilled during 1972. These measurements show that the area of liquid water beneath the ice cap extends to ice depths as shallow as 100 m. The consequences of removing the frozen margin of glacial ice could be serious and more temperature measurements are needed to exactly locate the subglacial water. Petrographic studies of a few ice cores revealed a strongly oriented crystal fabric and an appreciable surface accumulation of superimposed ice.
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    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 318
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  • 46
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    Call number: ZSP-202-312
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Nomenclature. - Introduction. - Test specimen. - Equipment and procedure. - Test chamber. - Error of eccentricity. - Equipment. - Procedure. - Results. - Tensile strength. - Fracture. - Discussion. - Uniaxial tensile strength. - Brazil test. - Comparison with theory. - Conclusions. - Literature cited. - Appendix A. Test results. - Abstract.
    Description / Table of Contents: An investigation was conducted to determine the effect of a compressive stress on the tensile strength of bubbly polycrystalline ice. One hundred forty-five tests were made in an apparatus of novel design. A cylindrical dumbbell specimen was stressed in axial tension and radial and tangential compression by a hydraulic system which minimized bending stresses. Compression-tension ratios ranging from 0.21 to 10.14 were used for the tests. Tensile strength was found to decrease with an increase in the ratio. At the ratio of 3.155 the tensile strength is about one third the uniaxial value. The test results support the evidence that the Brazil test underestimates the tensile strength for ice. They also indicate that the Brazil test value for ice can be no greater than one third the uniaxial tensile strength. A comparison of the experimental results with a few prominent biaxial failure theories indicates a lower tensile strength than predicted by any theory. However, the best approximation to the results is the Coulomb-Mohr criterion.
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    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 312
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  • 47
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-310
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Field sites and procedures. - Results. - Discussion. - Conclusions. - Literature cited. - Appendix A: Tabulation of AIDJEX core data. - Appendix B: Tabulation of average salinity/ice thickness data. - Abstract.
    Description / Table of Contents: The salinity distribution in multiyear sea ice is dependent on the ice topography and cannot be adequately represented by a single average profile. The cores collected from areas beneath surface hummocks generally showed a systematic increase in salinity with depth from 0 0/00 at tne surface to about 4 0/00 at the base. The cores collected from areas beneath surface depressions were much more saline and displayed large salinity fluctuations. Salinity observations from sea ice of varying thicknesses and ages collected at various arctic and subarctic locations revealed a strong correlation between the average salinity of the ice, S, and the ice thickness, h. For salinity samples collected from cold sea ice at the end of the growth season, this relationship can be represented by two linear equations: S = 14.24 - 19.39h (h? 0.4 m) ; S = 7.88 - 1.59h (h 〉 0.4 m) . It is suggested that the pronounced break in slope at 0.4 m is due to a change in the dominant brine drainage mechanism from brine expulsion to gravity drainage. A linear regression for the data collected during the melt season gives S = 1.58 + 0.18h. An annual cyclic variation of the mean salinity probably exists for multiyear sea ice. The mean salinity should reach a maximum at the end of the growth season and a minimum at the end of the melt season.
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  • 48
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-307
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Part 1.The concept of isotropy clarified by the introduction of non-coaxial mechanics. - Part 2. Systematization of the theory of plasticity with indefinite angle of non-coaxiality. - Analysis of stress. - Analysis of strain-rate. - Principle of partial coincidence. - Strain-rate characteristic directions. - Equations for practical use. - Conclusion. - Literature cited. - Appendix A.The sense of the [Sigma],[Gamma] coordinate system. - Appendix B. Another derivation of the equations of velocity components. - Appendix C. Equations of velocity components in stress characteristic directions.
    Description / Table of Contents: One of the difficulties that have hampered the development of the mathematical theory of soil plasticity was recently overcome by Mandl and Luque. They showed that the non-coaxiality of the principal axes of a stress tensor and a strain-rate tensor can occur only in plane deformation. Their assumption that the angle of non-coaxiality should be a material constant cannot be supported, however. The angle of noncoaxiality should be determined so that the solution to the given problem can exist. It is demonstrated in one of the examples in this paper that a well-known solution in which the angle of non-coaxiality is assumed to be zero does violate the assumed boundary condition. The theory was reorganized bv using new insights given by Mandl and Luque. It is concluded that still missing is one condition that enables us to determine the angle of non-coaxiality as a function of space.
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  • 49
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-302
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Literature review. - Experimental procedure. - Experimental and theoretical equations. - Results and discussion. - Conclusions. - Literature cited. - Appendix A. Some problems in the experimental determination of the extinction coefficient of ice fog. - Appendix B. Ice fog production technique. - Appendix C. Ice fog samples and their corresponding particle spectra. - Abstract.
    Description / Table of Contents: Laser extinction measurements in ice fog were made at wavelengths of 0.6328, 1.15 and 3.39 microns. The ice fog was generated in an environmental chamber whose temperature could be lowered to -43°C. Particle sampling was carried out simultaneously with the laser measurements using an impactor. Size distributions were derived from the impactor measurements. These data were used to compute Mie extinction coefficients at the three laser wavelengths. These coefficients were compared with the coefficients derived experimentally. Although some discrepancy exists between theory and experiment, both agree fairly well on the behavior of the extinction coefficient as a function of particle concentration.
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  • 50
    Call number: ZSP-292-288
    In: Research report
    Description / Table of Contents: Contents: Preface. - List of symbols. - Introduction. - Adsorption of volatile chemicals by soil. - Introduction. - Experimental procedure. - Results and discussion. - Diffusion of volatile chemicals in soil. - Introduction. - Experimental procedure. - Calculations. - Results and discussion. - Prediction of vapor diffusion in soil. - Introduction. - Construction of model. - Computations. - Results and discussion. - A statistical method for analysis of diffusion through soil. - Introduction. - Theory. - Application. - Literature cited. - Abstract.
    Description / Table of Contents: Detection of mines, explosives, and tunnels may be accomplished by sensing associated volatile effluvia. This investigation was undertaken to provide a basis for predicting the diffusion of volatile compounds from underground sources into the atmosphere. Diffusion of a volatile compound was studied for a range of soil conditions utilizing soils from the mine detection sites in Puerto Rico. A new mathematical analysis based on the Monte Carlo method was developed for predicting vapor diffusion through soil into the atmosphere. It was determined that diffusion in soil can be reliably predicted if soil porosity, moisture content, and affinity for the compound are known. Appearance in the atmosphere is also dependent on accumulation of the compound in air at the soil/atmosphere interface. Diffusion of volatile compounds through soil into the atmosphere is not likely to be an important factor in tunnel detection due to depth of overburden. However, adsorption of compounds at tunnel walls is likely to significantly reduce the amount of vapor appearing in the atmosphere through entrances and vents. Detection in the atmosphere of TNT vapor from mines and explosives buried in moist, porous soil should be possible under ideal sample collection conditions.
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    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 288
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  • 51
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    Call number: ZSP-202-296
    In: Research report
    Description / Table of Contents: A theory is developed to describe the percolation of water through isothermal snow with a vertical porosity gradient. While the necessary laboratory experiments have not been done for snow, concepts from the general theory of two phase flow through porous media are used in the development. The general solution for the one-dimensional problem is given, which, when combined with any periodic boundary condition, can be used to make quantitative predictions. The theory is applied to water percolation through firn on the upper Seward Glacier (Sharp, 1951a). Using appropriate values for the parameters, theory shows a wave of volume flux which travels down into the firn and develops features similar to those observed by Sharp. These include an initially symmetric wave which distorts with depth, continuous (rather than intermittent) downward flow beneath the surface, and a decreasing value for the wave crest with depth. The rate at which the waves propagate is calculated using the method of characteristics and is in fair agreement with the observed rate where the permeability of the bulk firn with ice layers is reduced by a factor of two over homogeneous snow samples studied in the laboratory (Kuroiwa, 1963). The theory predicts that the waves advance with a shock front which grows with depth. The shock front is thought to be only an approximation to the actual physical process
    Description / Table of Contents: CONTENTS: Preface. - Symbols. - Introduction. - Theory. - Darcy's Law. - Functional permeability. - Equations. - Characteristics. - Seward Glacier firn. - Discussion. - Summary. - Literature cited. - Abstract.
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    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 296
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  • 52
    Call number: AWI G2-15-0023
    In: Coastal and estuarine studies, 40
    Type of Medium: Monograph available for loan
    Pages: XV, 647 S. : Ill., zahlr. graph. Darst., Kt.
    ISBN: 0875902545
    Series Statement: Coastal and estuarine studies 40
    Language: English
    Note: Contents: Acknowledgement. - Contributors List. - PART I. INTRODUCTION. - Introduction / D. Prandle. - PART II. BAROCLINIC DYNAMICS. - The influence of coastally trapped waves on the circulation in Jervis Bay, New South Wales / P. D. Craig and P. E. Holloway. - Tidal mixing near the sill of a Scottish sea loch / A. J. Elliott, P. A. Gillibrand and W. R. Turrell. - A topographically induced internal wave and mixing in the Tamar Estuary / D. R. Sturley and K. R. Dyer. - Turbulence and shear induced mixing processes in estuaries / E. J. Derbyshire & J. R. West. - Dynamically-active models in the prediction of estuarine stratification / J. H. Simpson and J. Sharples. - PART III. CIRCULATION. - Circulation Residual flow in Naples Bay and its effect on constituent concentration, constituent flux and residence time / J. Van de Kreeke. - The stratified hydrodynamics of the Palmiet - a prototypical bar-built estuary / J. L. Largier, J. H. Slinger and S. Talijaard. - Salinity structure of a shallow, tributary estuary / W. W. Schroeder, S. P. Dinnel and W. J. Wiseman Jr. - On meteorologically induced subtidal motion in Hangzhou Bay / J. L. Su and W. Chen. - Water level fluctuations in the Atchafalaya Delta, Louisiana: tidal forcing versus river forcing / E. M. Swenson and C. E. Sasser. - Modelling of low-frequency salinity variations in the St. Lawrence Estuary / K. T. Tee. - On the estuatine circulation within the Kattegat / N. Winkel-Steinberg, J. O. Backhaus and T. Pohlmann. - PART IV. SEDIMENTATION. - Sedimentation Observations of fine-sediment concentrations and transport in the turbidity maximum region of an estuary / R. J. Uncles, J. A. Stephens and M. L. Barton. - Velocity asymmetries in frictionally-dominated tidal embayments: longitudinal and lateral variability / C. T. Friedrichs, D. R. Lynch and D. G. Aubrey. - Effects of sea-level rise on muddy coastal margins / R. Kirby. - Acoustic measurements of suspended sediment over sandwaves / P. D. Thome, R. L. Soulsby and P. J. Hardcastle. - Some observations on fluid mud response to water waves / F. Jiang and A. J. Mehta. - The reflection of waves off beaches / J. Darbyshire. - PART V. MODELLING (SEDIMENT). - Dispersion in tidally-averaged transport equation / R. T. Cheng and V. Casulli. - Effect of bends on dilution rates / R. Smith. - Modelling the vertical distribution of suspended sediment in combined wave-current flow / A. G. Davies. - Some considerations on mathematical modelling of morphological processes in tidal regions / Z. B. Wang. - A three-dimensional transport model for dissolved and suspended matter in estuaries and coastal seas / G. C. van Dam and R. A. Louwersheimer. - An estuatine and coastal sand transport model / B. A. O'Connor and J. Nicholson. - PART VI. APPLIED STUDIES. - Current and density structure in the Netherlands coastal zone / W. P. M. de Ruijter, A. van der Giessen and F. C. Groenendijk. - On the distribution of suspended matter and the density driven circulation in the Dutch coastal area / M. Visser. - Coastal dynamics along a rugged coastline / B. King and E. Wolanski. - Transport of hypoxic waters: an estuary-subestuary exchange / A. Y. Kuo and K. Park. - Interdisciplinary study on the tidal front in the Bungo Channel, Japan / T. Yanagi, O. Matsuda, S. Tanabe and S. Uye. - Hydrodynamic modelling for a tidal power project / T. L. Shaw.
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  • 53
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-274
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - The ice/ice interface. - The ice/air interface. - The silicate/water/silicate interface. - The silicate/water/ice interface. - Summary. - Literature cited. - Abstract.
    Description / Table of Contents: Interfacial regions in frozen soils are of the following types: ice/ice (grain boundary) ice/water/air, silicate/water/silicate (interlamellar) and silicate/water /ice (extralamellar). For the last, the mid-portion of the interfacial region should be regarded as a liquid-like solution of the ionic and undissociated substances sorbed by the interface and expelled from the ice during freezing. The interfacial forces operative in these regions result in distinct differences in the properties and behavior of the interfacial water, compared with water in bulk; but, in spite of strong interfacial forces, the interfacial water exhibits liquid-like mobility in its response to many kinds of driving forces. From the evidence and arguments considered, it is concluded that distinctly different zones of orientational order can be distinguished within the interfacial regions. For an advancing silicate/water/ice interface it is proposed that there is a zone of strong perturbation and disorder immediately proximate to silicate surfaces in which the protons of water molecules are partially delocalized; this makes them more easily dissociated. Two or three molecular diameters removed from the silicate surface the interfacial forces operative there combine to create a zone of enhanced order in the molecular configurations. At some farther distance, depending upon the temperature below freezing, it is suggested that there exists a disordered transition zone proximate to the ice surface as portrayed in Drost-Hansen's model. It is suggested that future investigations will contribute refinements in the model and will uncover still further complexities in the various interfaces mentioned.
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    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 274
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  • 54
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research & Engineering Laboratory
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    Call number: ZSP-202-265
    In: Research report
    Description / Table of Contents: An infinite plate on an elastic foundation is considered for a uniform load distributed over a circular area. The analysis of the problem is based on three-dimensional theory of elasticity. A numerical evaluation for the critical stress is made assuming a bending type of failure and the results closely agree with Westergaard's equations.
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  • 55
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    Call number: ZSP-202-261
    In: Research report
    Description / Table of Contents: This paper considers a load moving with a constant velocity across an ice sheet that is floating on water. The ice sheet is assumed to be an isotropic, elastic, thin plate extending to infinity. The water is assumed to be inviscous, incompressible, and of a constant depth. The dynamic equations describing this ice-water system are solved for the steady state solution. Both a concentrated load and a uniform load distributed over a circular area are considered. The velocity which causes resonance is determined. The deflection and stress directly under the load are numerically evaluated.
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    Pages: ii, 13 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 261
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  • 56
    Call number: ZSP-202-262
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Regional setting. - General description and topography. - Geology. - Soils. - Climate. - Precipitation. - Temperature. - Weather during period of study. - Vegetation. - Hydrology. - Water balance. - Introduction. - Yield. - Precipitation. - Loss of glacial storage. - Evapotranspiration. - Summary. - Flow variability. - Flow-duration curves. - Flood estimation. - Response to rain and meltwater. - Water quality. - Introduction. - Suspended sediment. - Bedload. - Dissolved sediment. - Water temperatures. - Channel shape and process. - General characteristics of braided channels. - Channel material. - Channel shape. - Channel changes. - Introduction. - Channel profiles. - Ground photography. -Vertical aerial photography. - Freeze-up and breakup. - Summary. - Literature cited. - Selected bibliography. - Appendix A: Measurement site locations and methods. - Appendix B: Installation of water-level recorder. - Appendix C: Delta river quicksilts - properties and mode of formation. - Appendix D: Channel shape data. - Abstract.
    Description / Table of Contents: A one-year reconnaissance study was made of a large braided glacial river and its drainage basin (drainage area 1665 m^2; elevation range 1000 - 10,000 ft) for which a minimum of hydrometric and meteorologic data existed. The report includes estimates of the water balance, flow-duration curves, and sediment characteristics, and descriptions of stream response to glacial melt and rain, channel geometry and channel processes. Mean annual basin precipitation is estimated at 40.4 in. and mean annual loss of permanent glacial storage is about 1 in. About 30% of this leaves the basin as evapotranspiration, 50% as stream flow, and 20% as groundwater flow. Characteristics of response to glacial melt are outlined. Flow peaks near the mouth occur within 24 hours of rainfall Greater than 0.5 in./day at foothills meteorological stations; rains of less than that amount do not generally produce discernible stream response. Stream channel geometry is described in detail. Most channels on the lower floodplain are asymmetrical and are roughly triangular or parabolic, and have high width/depth ratios. At-a-station hydraulic geometry is described. Surveys and gr ound and aerial photography are used to describe channel changes.
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    Pages: v, 83 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 262
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  • 57
    Call number: AWI P5-15-0006
    Type of Medium: Monograph available for loan
    Pages: XIII, 495 Seiten
    Edition: printed original edition 1967
    ISBN: 0-8047-0272-1
    Language: English
    Note: Contents: 1 Introduction. - 2 Geology of the Floor of Bering and Chukchi Seas - American Studies. - 3 Late Quaternary Sediments of Bering Sea and the Gulf of Alaska. - 4 Quaternary Marine Transgressions in Alaska. - 5 Quaternary Geology of the Alaskan Shore of Chukchi Sea. - 6 Quaternary Geology of Western Seward Peninsula, Alaska. - 7 Paleogeography of Chukotka During Late Neogene and Quaternary Time. - 8 Radiocarbon Chronology in Siberia. - 9 Neogene and Early Quaternary Vegetation of Northwestern North America and Northeastern Asia. - 10 Quaternary Vegetational History of Arctic Alaska. - 11 Vegetation of Eastern Siberia During the Anthropogene Period. - 12 Distribution, Ecology, and Cytology of the Ogotoruk Creek Flora and the History of Beringia. - 13 Mammal Remains of Pre-Wisconsin Age in Alaska. - 14 On the Origin of the Mammalian Fauna of Canada. - 15 The Effect of the Bering Land Bridge on the Quaternary Mammalian Faunas of Siberia and North America. - 16 Palearctic-Nearctic Mammalian Dispersal in the Late Cenozoic. - 17 The Stratigraphy of Tjbrnes, Northern Iceland, and the History of the Bering Land Bridge. - 18 Cenozoic Migrations of Marine Invertebrates Through the Bering Strait Region. - 19 Marine Mammals and the History of Bering Strai. - 20 Depth Changes in Bering Sea During the Upper Quaternary, as Indicated by Benthonic Foraminifera. - 21 Diatom Floras and the History of Okhotskand Bering Seas. - 22 On Migrations of Hunters across the Bering Land Bridge in the Upper Pleistocene. - 23 Human Migration and Permanent Occupation in the Bering Sea Area. - 24 The Cenozoic History of Beringia - A Synthesis. - General Index. - Index to Faunal and Floral Taxa.
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  • 58
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    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
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    Call number: ZSP-202-306
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - 1. Coastal stations. - Alaska. - Canada. - Greenland. - Europe and Russia. - II. The interior Arctic Ocean. - Zone 1. - Zone 2.. - Zone 3. - Zone 4. - Zone 5. - Zone 6.. - Summary and discussion. - Supplemental data. - Literature cited. - Appendix A. Winds. - Appendix B. Arctic surface winds. - Appendix C. Excerpt from Cold Regions Science and Engineering, USA CRREL Monograph I-A3b. - Appendix D. Excerpt from Proceedings of the Arctic Basin Symposium October 1962. - Abstract.
    Description / Table of Contents: Prevailing monthly and seasonal surface wind directions were obtained from 1) weather records for 21 coastal stations around the Arctic Ocean and 2) a series of U.S. Navy wind charts for 15 to 20 locations in the arctic marginal seas and the ocean's interior. This information was combined and analyzed to develop 2 charts which depict the surface flow of air in these areas during the mid-summer and mid-winter months. Since the ice floe stations used in the offshore wind analysis are not permanently located, the Arctic Ocean was selectively divided into 6 zones. Three of these zones separate Polar regions north of 84°N latitude, and 3 other zones each separate the seas bordering the north coasts of Europe, Siberian Russia and North America. Except for a few stations where wind directions are apparently controlled by local influences the results showed the following mid-winter patterns: 1) a near anticlockwise flow within the circle north of 75°N, 2) winds from the north in and near the Chukchi and Bering Seas, 3) northeast winds along the Alaskan coast and northwest along the Canadian Archipelago Islands, and 4) southwest and southeast winds along the northern coasts of Europe and Asia respectively. Although the wind directions during mid-summer become more variable the study showed that the prevailing surface winds for most areas in this season are nearly opposite those observed in winter.
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    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 306
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  • 59
    Call number: ZSP-202-301
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - 1.The flow of organic nutrients in plants in cold-dominated ecosystems and the influence of man's activities on this flow. - Methodology for extraction and estimation of plant lipids, alcohol and water-soluble carbohydrates, starch and fructans. - Seasonal cycles in lipids and alcohol-soluble carbohydrates in plants at Barrow, Alaska. - Biochemical changes in plants at the heated soil experiment at Barrow. - Literature cited. - II. Contributions of carbon dioxide from frozen soil into the arctic atmosphere. - Introduction. - Laboratory study. - Field study. - Conclusions. - Literature cited. - III. Biochemical estimations of underground plant biomass. - Appendix A. Methodology. - Abstract.
    Description / Table of Contents: Two approaches were used to study the carbon cycling in a cold-dominated ecosystem at Barrow, Alaska. One involved a detailed analysis of the flow of CO2 between the atmosphere, soil and biota and the other concentrated on the internal carbon cycling in plants. A pilot study was also conducted which investigated the possibility of estimating underground plant biomass by biochemical means. Both laboratory and field studies were conducted to analyze the input of CO2 to the arctic atmosphere by frozen tundra soils. Data are presented which indicate that frozen soil is a major source of CO2. It is hypothesized that CO2 trapped in soils during bi-directional freezing in the fall and winter is released during the spring thaw, thus producing a spring rise in CO2 content of the atmosphere. A procedure for the extraction and estimation of organic nutrients (lipids and carbohydrates) was developed and used to follow the seasonal cycle of these nutrients of plants obtained at Barrow, Alaska. No cycling in levels of carbohydrates (alcohol-soluble) was observed in the foliage during the season, however a definite cycling in lipid levels was seen for all the species studied. The species were synchronous. Plant survival and organic nutrient levels were followed during the winter over a heated-soil experiment at Barrow, Alaska. During the winter, the heating of the soil caused ponding which resulted in the elimination of Dupontia fischeri by mid-winter and the eventual death of all plants by spring. The carbohydrate levels indicated a starvation condition was created where a marked decrease in storage polymers (starch and fructans) occurred without a concurrent large increase in the alcohol-soluble carbohydrate levels. An increase in the fresh/dry weight ratios was also observed indicating etiolated, succulent growth in early winter. Four techniques were tried for estimating the below-ground biomass of plants. Two of these were eliminated as unsuitable, however two other methods(ATP and phospholipid-levels) remain to be fully evaluated.
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    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 301
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  • 60
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    Call number: ZSP-202-303
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Notation. - 1.Introduction. - 1.1Definition and scope of problem. - 1.2 Theoretical background. - 1.3 Previous work on the single plate-grouser problem. - 1.4 Background of the present investigation. - 2.Theory of two-dimensional soil failure by a plate-grouser. - 2.1 Basic criteria and assumptions. - 2.2 Rupture zones and boundaries. - 2.3 Forces in the spiral and Rankine zones. - 2.4 Solution to forces of the equilibrium wedge abc when [Theta]c 〉 [Theta] 〉 (- [Epsilon] [equal to or greater] -[Beta]). - 2.5 Solution to the forces H and V. - 3. Observation of soil rupture patterns. - 3.1 General. - 3.2 Test equipment and photographic technique. - 3.3 Photographing failure patterns. - 3.4 Observation of the equilibrium wedge when [Theta]c 〉 [Theta] 〉 - [Epsilon]. - 3.5 Rupture patterns at [Theta] = 90°. - 4. Force measurements. - 4.1Test program. - 4.2 The plate-grouser test apparatus. - 4.3 The measurement of soil strength. - 4.4 Results of controlled [Theta] tests. - 5. Conclusions. - Literature cited. - Appendix A: Details of mathematical methods. - Appendix B: Computer program. - Appendix C: Examples of application. - Appendix D: Photographs of failure patterns. - Abstract.
    Description / Table of Contents: The most common example of the application of inclined loads to the soil is the plate-grouser. This consists of a strip footing with a vertical arm at one end. The most usual loading arrangement is one in which a fixed vertical load is applied and then the horizontal load is increased until failure occurs. A theory has been developed which will predict the maximum horizontal force, assuming that the soil is dense enough to be reasonably described by the Coulomb equation. The theory is based on slip line fields including wedges of soil that are not failing. These slip line fields vary systematically with the interface angle [Beta] and the angle of internal shearing resistance of the soil [Phi] and they are a function of the direction of motion of the interface [Theta]. A computer program is provided which will solve the problem directly if the direction of motion [Theta] is given. It will also solve the more practical situation described above by an iterative procedure. The postulated slip line fields have been shown to be correct by means of glass box photographs giving excellent agreement with the theory. The predictions of passive pressure have been verified by a series of force measurements on quite large grousers driven into saturated clay, dry sand and an intermediate loam.
    Type of Medium: Series available for loan
    Pages: vi, 93 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 303
    Language: English
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  • 61
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    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-243
    In: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command, 243
    Description / Table of Contents: The internal friction of single-crystal ice has been attributed to reorientation of the water molecule under periodic stress. However, the theory for damped dislocations, which offers another mechanism for the internal friction of ice, has not been investigated. The effects of scratching the surface of 41 ice samples and X-irradiating and plastically deforming them were evaluated. The effects observed on the internal friction of pure, single-crystal ice, in the flexure mode of oscillation between 400 and 1400 Hz, supported the existence of a dislocation-controlled mechanism, with the drag produced by the interaction of the dislocation with the protons in the crystal. In addition, analysis of the detailed shape of the data curve showed two peaks of tan delta as a function of temperature. The second peak, which had not been previously reported, had an activation energy of 0.16 eV and a relaxation time of 1.7 x 10^8 sec at infinite temperature. These experiments indicated that both peaks vrere controlled by the dislocation mechanism described above.
    Type of Medium: Series available for loan
    Pages: iv, 41 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 243
    Language: English
    Note: CONTENTS: Introduction. - Previous work. - Previous theory. - Internal friction of a crystal. - Granato-Lücke theory of dislocation damping. - Double kink mechanism. - Mechanisms not involving dislocations. - Experimental work. - Experimental approach. - Experimental apparatus. - Mode of oscillation. - Automated system. - Support, acoustic isolation, and temperature control. - Sample preparation. - X-ray apparatus. - Data analysis. - Stage I. - Stage II. - Stage III. - Experimental results and discussion. - The second peak. - Interpretation of scratching, X-irradiation, and plastic deformation. - Scratching. - X-irradiation. - Plastic deformation. - Supporting research. - Interpretation of the two peaks. - Conclusions. - Literature cited. - Appendix A: Computer programs. - Abstract.
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  • 62
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-314
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Previous work. - Sea ice terrain model. - Traffic ability model. - Analytic calculation of DT/DSL. - Monte Carlo calculation. - Results of traffic ability computations. - Experimental traffic ability ratios using ridge overlays. - Regional variations in ridging intensity. - Additional traffic ability aspects of sea ice. - Shear zone and rubble fields. - Linear lead systems. - Conclusions. - Literature cited. - Appendix A. Distribution of the lateral extent of ridges. - Abstract.
    Description / Table of Contents: A sea ice terrain model, based upon previously tested height and spacing distributions for sea ice pressure ridging, is developed. Using this model, and additional information on pressure ridge extents, a trafficability model for vehicles traversing the pack ice is developed. Both analytic and Monte Carlo calculations of vehicle trafficability, measured in terms of the average ratio of the total distance traveled over a straight-line distance, are performed. The calculations include cul-de-sacs due to ridge intersections. The trafficability ratio is given as a function of ridge-height-clearance ability of the vehicle and of ridging parameters which may be obtained from laser profiles of the arctic pack ice. Results are in good agreement with simulated routes through sea ice terrain taken from aerial photo mosaics. Contour plots of ridging parameters taken from laser profilometry are also supplied. These plots, together with the trafficability model, supply mobility information for the whole of the western portion of the Arctic Basin.
    Type of Medium: Series available for loan
    Pages: iii, 21 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 314
    Language: English
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  • 63
    Series available for loan
    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-311
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Notation. - Introduction. - Review of observations. - Review of theory. - Water flow through textured layers. - Water flow past semipermeable layers. - Discussion. - Literature cited. - Abstract.
    Description / Table of Contents: The flow of water through layered snowpacks is discussed. A method for predicting flow through unsaturated layers is given. The flow along ice layers and through ice layers is analyzed in terms of the slope, permeability, thickness and length of the layers. It is shown that the permeability of ice layers required to cause large flow diversions is quite small. The effect of slope is large even at small angles.
    Type of Medium: Series available for loan
    Pages: v, 15 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 311
    Language: English
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  • 64
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    Series available for loan
    Vienna : International Atomic Energy Agency
    Associated volumes
    Call number: AWI G2-15-0024
    In: Reports and studies
    Type of Medium: Series available for loan
    Pages: 191 S.
    Series Statement: Reports and studies / Joint Group of Experts on the Scientific Aspects of Marine Pollution 43
    Language: English
    Note: CONTENTS: EXECUTIVE SUMMARY. - 1. INTRODUCTION. - 1.1. Background. - 1.2. Definition of the coastal zone. - 1.3. Modelling for marine pollution studies. - 2. MODELLING FRAMEWORK. - 2.1. lntroduction. - 2.2. Questions to be answered. - 2.3. Other model dependencies on the nature of the questions. - 2.3.1. Near-field models. - 2.3.2. Far-field models. - 2.4. Conceptual model of contaminant dispersion. - 2.4.1. Description of water column processes. - 2.4.2. Description of the sea bed processes. - 2.4.3. Sources and sinks. - 2.5. Selection of components of the conceptual model. - 3. MODEL CONSTRUCTION. - 3.1. Modelling approach. - 3.1.1. Deterministic modelling approach. - 3.1.2. Stochastic modelling. - 3.2. Hydrodynamic model. - 23.2.1. From simple to complex models . - 3.2.2. Model complexity and predictability. - 3.2.3. Dealing with the problern of open boundaries. - 3.3. Sub-models. - 3.3.1. Sediment transport model. - 3.3.2. Biological transport model. - 3.3.3. Benthic transport model. - 4. MODEL FORMULATION AND PARAMETERIZATION OF PROCESSES. - 4.1. lntroduction. - 4.1.1. Philosophy. - 4.1.2. Levels of parameterization. - 4.2. Parameterization in transport models. - 4.2.1. Hydrodynamical model. - 4.2.2. Pollutant transport model: advection-diffusion equation. - 4.2.3. Sediment transport models. - 4.2.4. Biological transport models. - 4.3. Contaminant transport model: couplings between transport models. - 4.3.1. Biota-water interactions. - 4.3.2. Biota-particle interactions. - 4.3.3. Particle-water interactions. - 4.4. Decay and production. - 4.5. Parameterization in transport models for the sea bed. - 4.6. Characterizing source terms. - 5. CASE STUDIES. - 5 .1. Introduction. - 5.2. Cadmium in an estuary. - 5.2.1. Statement of the management problem. - 5.2.2. Model construction. - 5.2.3. Example calculations. - 5.2.4. Additional comments. - 5.3. Monazite sand dregded from an estuary. - 5.3.1. Statement of the management problern. - 5.3.2. Model construction. - 5.3.3. Specific examples. - 5.4. Impact of the disposal of titanium dioxide wastes into coastal waters. - 5.4.1. Statement of the management problem. - 5.4.2. Model construction. - 5.4.3. Example calculations. - 5.4.4. Additional comments. - 5.5. Nutrient inputs to Osaka Bay. - 5.5.1. Statement of the management problem. - 5.5.2. Model construction. - 5.5.3. Example calculations. - 5.5.4. Additional comments. - 5.6. Sewage discharge near a beach. - 5.6.1. Statement of the management question. - 5.6.2. Model construction. - 5.6.3. Example calculations. - 5.6.4. Additional comments. - 5.7. Model for the Dutch North Sea water quality management plan. - 5. 7 .1. Statement of the management problem. - 5.7.2. Model construction. - 5.7.3. Example calculations. - 5.7.4. Additional comments. - 5.8. Radioactive discharges from a nuclear reprocessing plant. - 5.8.1. Statement of the management problem. - 5.8.2. Model construction. - 5.8.3. Additional comments. - 5.9. Overall observations. - 6. QUALITY ASSURANCE PROCEDURES. - 6.1. Introduction. - 6.2. Verification. - 6.3. Sensitivity analysis. - 6.4. Validation. - 7. SUMMARY AND CONCLUSIONS. - REFERENCES. - ANNEX I. COASTAL REGIMES. - A1.1. Estuaries. - A1.1.1 Stratified estuaries. - A1.1.2. Partially-mixed and well-mixed estuaries. - A1.1.3. Fjords. - A1.1.4. Hybrid estuaries. - A1.1.5. Transverse characteristics of estuaries. - A1.2. Inshore embayments. - A1.3. Open continental shelf. - A1.3.1. Example of a wide shelf. - A1.3.2. Example of a narrow shelf. - A1.4. Marginal seas. - A1.4.1. Example of a marginal sea with a sill: the Baltic Sea. - A1.4.2. Example of a marginal semi-constrained sea: the North Sea. - A1.5. The Arctic shelves. - References to Annex 1. - ANNEX 2. DETAILS ON PARAMETERIZATION OF PROCESSES. - A2.1. Introduction. - A2.2. Hydrodynamic transport models: momentum transfer. - A2.3. Sediment transport models. - A2.3.1. Bed-load transport. - A2.3.2. Suspended sediment transport. - A2.3.3. Grain size distributions. - A2.3.4. Gravitational settling. - A2.3.5. Critical bed shear stress. - A2.4. Biological transport models. - A2.5. Benthic transport models. - A2. 6. Coupling between transport models. - A2.6.1. Biota-water interactions. - A2.6.2. Sediment-water interactions. - A2.7. Diagenesis: water-sediment interactions. - A2.8. Parameterization of the source term. - A2.8.1. Nature of source. - A2.8.2. Bulk sources. - A2.8.3. Disposal procedure. - A2.8.4. Specific chemical compounds. - References to Annex 2. - LIST OF WORKING GROUP MEMBERS, SECRETARIAT AND MEETINGS. - GESAMP REPORTS AND STUDIES.
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  • 65
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    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research & Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-273
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Background. - Physical characteristics of snow. - Mechanical behavior of snow. - Failure mechanism of snow. - Description of experimental work. - Method. - Preparation of test samples. - Test apparatus and equipment. - Procedure. - Results and discussion. - Mechanical properties of test samples. - Experimental results. - Summary, conclusions, and recommendations. - Literature cited. - Selected bibliography. - Appendix A. Development of theoretical equations. - Appendix B. Test data and calculations. - Appendix C. Selected, representative photographs. - Appendix D. Schedule of tests performed. - Abstract.
    Description / Table of Contents: This report presents the results of a study performed on the behavior, particularly the deformation, of snow under a load applied to a rigid plate at a constant rate of penetration. The results will eventually be used in the development of design criteria for snow roads, runways, and foundations in the polar regions. The tests were conducted on snow samples having a high width/length ratio, simulating a two-dimensional case. The effect of snow density, plate size, and pressure on the deformation of snow below the load was investigated. The pressure-sinkage relationships and the bearing strength as functions of density were also investigated. It was determined that density, in the range 0.3 to 0.6 g/cm^3, can be used as a reasonably reliable index for predicting deformation and behavior of snow under load. In general, the critical pressure (bearing strength) increased as a power function of density, and critical sinkage decreased as a power function of density. It was also observed that the deformation bulb resembled the typical Boussinesq stress bulb. The experimental pressure-sinkage relationships agreed closely with recently developed theoretical values. For the range of plate sizes used, the test data did not provide conclusive evidence of the effect of plate size on deformation and bearing capacity of snow. The possibility of using the Moire fringe method for determing deformation patterns in snow and soils under various loading conditions should be investigated.
    Type of Medium: Series available for loan
    Pages: iv, 67 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 273
    Language: English
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  • 66
    Monograph available for loan
    Monograph available for loan
    Cambridge : Cambridge Univ. Pr.
    Call number: M 93.0687 ; AWI A5-92-0492 ; PIK N 456-93-0164
    Type of Medium: Monograph available for loan
    Pages: xiii, 201 S.
    Edition: 1st publ.
    ISBN: 0521381789
    Classification:
    Meteorology and Climatology
    Language: English
    Location: Upper compact magazine
    Location: Upper compact magazine
    Location: A 18 - must be ordered
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  • 67
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Cambridge Univ. Press
    Call number: AWI S6-14-0059 ; 2/N 14.0263
    Description / Table of Contents: "This is a hands-on guide for graduate students and other young researchers wishing to perfect the practical skills that are needed for a successful career in research. By teaching junior scientists to develop effective research habits, the book helps make the experience of graduate study a more efficient, effective and rewarding one. Many graduate students learn these skills "on the job", often by doing them poorly at first, with the result that much valuable time can be lost; this book will help prevent that. The authors have taught a graduate course on the topics covered in this book for many years, and provide a sample curriculum for instructors in graduate schools who wish to teach a similar course. ... The wealth of advice offered in this book is invaluable to students, junior researchers and their mentors in all fields of science, engineering and the humanities."
    Type of Medium: Monograph available for loan
    Pages: X, 286 S. : Ill., graph. Darst.
    Edition: 1. publ. 2009, 5th print. 2013
    ISBN: 9780521743525
    Classification:
    E.7.
    Language: English
    Note: Contents: 1 Introduction. - 2 What is science?. - 3 Choices, choices, choices. - 4 The adviser and thesis committee. - 5 Questions drive research. - 6 Giving direction to our work. - 7 Turning challenges into opportunities. - 8 Ethics of research. - 9 Using the scientific literature. - 10 Communication. - 11 Publishing a paper. - 12 Time management. - 13 Writing proposals. - 14 The scientific career. - 15 Applying for a job. - 16 Concluding remarks. - Appendix A. Futher reading. - Appendix B. A sample curriculum. - Appendix C. The Refer and BibTeX format. - References. - About the authors. - Index.
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  • 68
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    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-298
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Abstract. - I. Introduction. - II. A statistical theory of trafficability. - Statistical descriptions of trafficability. - Statistical modeling of trafficability. - Trafficability in a variable space with comparison to a fixed space. - III. Statistical description of sea ice. - Homogeneous, isotropic, and normal random function. - Upper bound of probability for finding an obstacle derived from two-point probability density function. - IV. Design criteria of a SEV derived from sea ice surface roughness. - Literature cited. - Appendix: Statistics of a variable space.
    Description / Table of Contents: Efforts were made to derive the design criteria of surface effect vehicles operated on arctic sea ice. Statistical theories were developed to describe trafficability of the vehicles and topography of the sea ice. By the use of actual sea ice surface profiles obtained by an aerial laser profiler, the usefulness of the present statistical method was demonstrated.
    Type of Medium: Series available for loan
    Pages: iii, 19 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 298
    Language: English
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  • 69
    Call number: ZSP-202-326
    In: Detecting structural heat losses with mobile infrared thermography / R.H. Munis, S.J. Marshall and M.A. Bush, Part I
    In: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command, 326
    Description / Table of Contents: CONTENTS: Preface. - Introduction. - Principle of the IR scanner. - Advantages of mobile infrared thermography. - Discussion of field measurements. - Recommendations for future work on thermography of buildings. - Other potential applications of infrared thermography of buildings. - Appendix A: Thermograms of northern exposure of USA CRREL building. - Appendix B: Sample thermograms of heat loss survey at Pease Air Force Base. -Appendix C: Sample thermograms of heat loss survey at Dartmouth College. - Abstract.
    Description / Table of Contents: A method to assess quickly the insulation effectiveness of buildings using mobile infrared thermography has been developed at USA CRREL. In contrast to the infrared thermography done in Sweden, this method concentrates on obtaining useful data by measuring the outside surface temperature of structures. This report outlines the basic principles involved in these measurements, and discusses field measurements and the inherent advantages of infrared thermography. Typical thermograms are presented in the appendixes.
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    Pages: iii, 13 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 326
    Language: English
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  • 70
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    Series available for loan
    Hanover, N.H. : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-297
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Abstract. - Introduction. - Glenn Creek watershed. - Location. - Topography. - Geology, soils and permafrost. - Climate. - Vegetation. - Data collection. - Precipitation. - Stream flow. - Air temperature and relative humidity. - Water temperature. - Evaporation. - Snow surveys. - Depth of thaw. - Dissolved solids. - Hydrology. - Introduction. - General channel description. - Hydraulic geometry. - Characteristics of hydrographs. - Sources of streamflow. - Attempts at flow separation. - Hydrograph modeling. - Summary and conclusions. - Literature cited. - Appendix A: Summary of permafrost probe observations, Glenn Creek watershed.. - Appendix B: Water-holding and-transmitting properties of moss. - Appendix C: Summary of hydraulic geometry data from 1964 discharge measurements. - Appendix D: Summary of data used in computing recession constants.
    Description / Table of Contents: The results of a four-summer (1964-1967) hydrologic study of the watershed of Glenn Creek, about 8 miles north of Fairbanks, Alaska, in the Yukon-Tanana uplands physiographic province, are presented. This work was initiated to provide initial baseline hydrologic data for a small subar ctic watershed, the first of its kind in North America. Standard hydrologic and meteorologic instrumentation was used, and streamflow characteristics were analyzed by standard hydrograph-analysis techniques. The stream is second-order, and drains an area of 0.70 square mile. Basin elevations are from 842 ft to 1618 ft. In regard to topography, geology, soils, permafrost, vegetation, and climate, the watershed seems to be representative of low-order, low-elevation drainage basins in the province. Analysis of rainfall-runoff data indicates that about half the 12.3-in. normal annual precipitation is runoff. The remainder is the actual evapotranspiration , which equals only about 30% of estimated potential evapotranspiration. For individual storms, runoff/rainfall proportions were from 0.03 to 0.42 and were positively correlated with antecedent discharge of the stream, which is a measure of watershed wetness. The stream responds rapidly to rainstorms except when the basin is very dry, and has markedly slow recessions compared with temperate region streams of similar size. Rate of recessions is apparentlv controlled by concurrent evapotranspiration rates. Analysis of hydrographs and knowledge of the physical characteristics of the basin indicate that storm runoff occurs initially as surface runoff from bare soil areas adjacent to the stream, while recessions are dominated by a combination of tunnel flow beneath moss-covered parts of the basins and typical groundwater flow through the moss and soils. Peak discharges for individual storms could be well estimated by an equation including antecedent discharge, total precipitation and storm duration, and average recession constant. These results represent the first detailed hydrologic data from the discontinuous permafrost zone of the North American taiga and should be of significance to the International Hydrological Decade and International Biological Program.
    Type of Medium: Series available for loan
    Pages: vi, 111 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 297
    Language: English
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  • 71
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    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army, Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-294
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Test materials. - Testing programs. - Test equipment. - Loading machine. - Environmental chamber. - Platen arrangements. - Stress/strain measurements. - Test procedures. - General. - Uniaxial compressive strength. - Diametral compression tests. - Stress/strain tests. - Test results. - Uniaxial compressive strength. - Brazil tensile strength. - Ring tensile strength. - Stress/strain characteristics. - Discussion. - Strength as a function of water content at room temperature. - Strength as a function of water content at -25°C. - Effect of temperature on the strength of nominally dry rocks. - Effect of low temperature on the strength of water-saturated rocks. - Effect of water on deformability at room temperature. - Deformability of air-dry rock as a function of temperature. - Effect of low temperature on the deformability of water-saturated rocks. - Conclusions and recommendations. - Literature cited. - Appendix A.Test materials for low temperature studies in rock mechanics. - Abstract.
    Description / Table of Contents: Strength tests were made on three types of rock, both "air-dry" and water-saturated, at temperatures from +25° to -195°C, and stress/strain tests were made down to -60°C. Strength of air-dry specimens increased with decreasing temperature at an average rate of approximately 2 x 10^-3 °C^-1, and quasi-elastic moduli increased at comparable rates. Static fatigue mechanisms in air-dry rock were apparently influenced by temperature-modification of adsorbed water. Strength of water-saturated specimens increased dramatically as pore water froze, and continued to increase down to -120°C, where compressive and tensile strengths were greater than room temperature values by factors of 5, 4 and 2 for sandstone, limestone and granite respectively. Compressive stress/strain curves for saturated rocks became steeper after freezing, and initial tangent moduli for saturated high porosity rocks increased by well over an order of magnitude.
    Type of Medium: Series available for loan
    Pages: v, 75 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 294
    Language: English
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  • 72
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    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-317
    In: Research report
    Description / Table of Contents: Experiments by Smith-Johannsen on the adhesion of ice frozen from a number of 1 x 10^-3 ? electrolyte solutions to a wax-treated aluminum surface at -10°C are discussed. It is concluded that the adhesive strength measured by the force per square centimeter needed to shear the ice off the substrate surface is mainly due to a liquid interfacial solution layer between the ice and the substrate surface. The thickness of such a layer is largely determined by the same considerations as the thickness of grain boundary layers in ice obtained from dilute electrolyte solutions.
    Type of Medium: Series available for loan
    Pages: ii, 9 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 317
    Language: English
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  • 73
    Monograph available for loan
    Monograph available for loan
    Kielce : Scandinavium
    Call number: AWI P5-15-0010
    Type of Medium: Monograph available for loan
    Pages: 214 S. : graph. Darst.
    Edition: 1. ed.
    ISBN: 9788389714374
    Language: English
    Note: Contents: Introduction. - List of abbreviations. - 1. Balance of energy as a contemporary challenge. - 1.1. Energy resources and needs. - 1.2. Natural gas balance at the beginning of 21st century. - 1.3. Economic and political conditions at the European gas market. - 1.4. European Union facing the problem of energy supplies. - 2. Energy security - Norden - Basic issues. - 2.1. Subject and scope of national energy security. - 2.2. Nordic countries in international life. - 2.3. Norden and the energy issues of the Baltic states. - 2.4. Nordic countries - European Union in the context of energy security. - 3. Basic elements of the energy balance in Norden states. - 3.1. The Republic of Iceland. - 3.2. The Kingdom of Denmark. - 3.3. The Kingdom of Sweden. - 3.4. The Republic of Finland. - 4. Position of the Kingdom of Norway. - 4.1. Norway as an oil and gas producer. - 4.2. Norway in the energy balance of the region. - 4.3. High North - strategy vision and plan of Norway. - 4.4. High North - relations with the Russian Federation in the field of energy. - 5. Energy and climate - directions of activities of countries from Nordic region. - 5.1. Activities concerning energy and environmental protection and climate changes. - 5.2. Research and development - overcoming negative relations between progress and environment degradation. - 5.3. Nordic states versus contemporary energy security challenges. - Conclusion. - Literature. - List of figures and tables.
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  • 74
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    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-279
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Nomenclature. - Introduction. - Basic equations. - Equation of motion. - Equation of continuity. - Artificial viscosity. - Equation of state. - Equation of motion. - Equation of continuity. - Artificial viscosity. - Equation of state. - Finite difference approximation. - Equation of motion. - Equation of continuity. - Artificial viscosity. - Equation of state. - Boundary conditions. - Results and discussion. - Literature cited. - Abstract.
    Description / Table of Contents: A finite difference method for predicting the effect of shock waves on a circular cylindrical cavity in elastic-plastic media was studied. A two-dimensional Lagrangean code was found quite satisfactory. Attenuation of the shock waves through the cavity and the deformation of the cavity wall were discussed.
    Type of Medium: Series available for loan
    Pages: v, 23 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 279
    Language: English
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  • 75
    Series available for loan
    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army, Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-295
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Physical basis of microwave moisture sensing. - Physics of transmission and reflection. - General behavior of reflection and transmission of electromagnetic waves through media of finite thicknesses. - Water-content determination by reflection or transmission measurements on micro-waves. - Outlook for microwave moisture sensors. - Future studies. - Bibliography. - Appendix A. Computer program. - Abstract.
    Description / Table of Contents: Microwave instrumentation is used for nondestructive measurement of the water content of materials. The basis of all microwave moisture sensors is that the dielectric constants of material that contains water are a strong function of water content. The microwave moisture sensors based on a reflection or transmission principle are shown to have the disadvantage of requiring that a calibration be made for each sample thickness. Several alternative routes for developing reliable microwave moisture sensors are discussed.
    Type of Medium: Series available for loan
    Pages: iii, 17 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 295
    Language: English
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  • 76
    Series available for loan
    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army, Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-290
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Experimental procedure. - Results and discussion. - Derivation of unfrozen water contents from these results. - Literature cited. - Abstract.
    Description / Table of Contents: Low temperature differential thermal analyses of selected clay-water systems were made to locate important phase change temperatures and to define fruitful temperature-pressure fields for precise calorimetric investigation. In addition to an exotherm corresponding to initial freezing, one, two or three exotherms were observed between -35°C and -60°C. The low temperature exotherms do not depend critically upon water content, but clearly they are related to clay mineral and exchangeable cation type. The evolution of heat in this temperature range probably corresponds to a phase change in the interfacial water.
    Type of Medium: Series available for loan
    Pages: iii, 17 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 290
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  • 77
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    Series available for loan
    Hanover, NH : Corps of Engineers, U.S. Army, Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-202-282
    In: Research report
    Description / Table of Contents: CONTENTS: Introduction. - Analytical procedures. - Measurement of crystal size. - Measurement of crystalorientation. - Results and discussion. - Byrd Station crystal structure and fabrics. - Little America V crystal structure and fabrics. - Conclusions. - Literature cited. - Abstract.
    Description / Table of Contents: Radical differences in the crystal structure and fabrics of glacier ice cores at Byrd Station and Little America V, Antarctica, are attributed to gross differences in the thermal and deformational histories of the ice at these two locations. At Byrd Station the mean size of crystals increased more than sixfold between 65 m and the bottom of the drill hole at 309 m. Crystal size was also found to increase linearly with the age of the ice, thus simulating isothermal grain growth in metals. However, this growth was not accompanied by any dimensional orientation of crystals or entrapped bubbles, or by any significant increase in the degree of preferred orientation of crystallographic c-axes. These observations imply that negligible shearing is occurring in the top 300 m of the thick grounded ice sheet at Byrd Station. By contrast very considerable deformation is indicated for the floating 258-m-thick Ross Ice Shelf at Little America. This deformation is characterized by the widespread occurrence of "strained" crystals below 65 m, the existence of elongated oriented bubbles between 95 m and 130 m and the attainment of pronounced crystal orientation (multiple-maxima fabrics) by 100-m depth. Exaggerated growth of crystals below 150 m is attributed to increasing temperatures in the ice shelf. The crystal structure of these cores clearly demonstrates that glacial ice only is present in the Ross Ice Shelf at Little America V.
    Type of Medium: Series available for loan
    Pages: iii, 21 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 282
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  • 78
    Monograph available for loan
    Monograph available for loan
    New York u.. : John Wiley
    Call number: M 92.0333 ; AWI G3-92-0458
    Type of Medium: Monograph available for loan
    Pages: XVIII, 313 S. : Ill.
    ISBN: 0471508616
    Classification:
    Petrology, Petrography
    Language: English
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  • 79
    Call number: AWI G2-98-0365 ; M 93.0402
    In: Contributions to sedimentology
    Type of Medium: Monograph available for loan
    Pages: IV, 210 S. : Ill., graph. Darst.
    ISBN: 3510570138
    ISSN: 0343-4125
    Series Statement: Contributions to sedimentology 13
    Classification:
    Petrology, Petrography
    Language: English
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  • 80
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: M 93.0568 ; PIK N 411-92-0553 ; AWI G3-92-0388
    Type of Medium: Monograph available for loan
    Pages: XIV, 281 S. : graph. Darst.
    ISBN: 3540534199
    Classification:
    Historical Geology
    Language: English
    Location: Upper compact magazine
    Location: A 18 - must be ordered
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  • 81
    Monograph available for loan
    Monograph available for loan
    Helsinki : Helcom
    Associated volumes
    Call number: ZSP-160-107
    In: Baltic sea environment proceedings
    Type of Medium: Monograph available for loan
    Pages: 57 S.
    Series Statement: Baltic sea environment proceedings 107
    Language: English
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  • 82
    Monograph available for loan
    Monograph available for loan
    New York, NY : Springer-Verlag
    Associated volumes
    Call number: 20/M 07.0074 ; AWI G6-22-820
    In: Environmental Science
    Type of Medium: Monograph available for loan
    Pages: XII, 308 Seiten , Illustrationen , 1 CD-ROM (12 cm)
    ISBN: 0-387-30513-0
    Series Statement: Environmental Science
    Classification:
    Ecology
    Language: English
    Note: Contents Acknowledgments Chapter 1. Introduction 1.1 Discovery 1.2 General Introduction 1.3 Just for Fun — An Isotope Biography of Mr. Polychaete Chapter 2. Isotope Notation and Measurement Overview 2.1 The Necessary Minimum for Ecologists 2.2 Why Use the 5 Notation? 2.3 Why Is 8 a Good Substitute for % Heavy Isotope? 2.4 8 and the Ratio-of-Ratios 2.5 Chapter Summary Chapter 3. Using Stable Isotope Tracers Overview 3.1 Isotope Circulation in the Biosphere 3.2 Landscape Ecology and Isotope Maps 3.3 Community Ecology and Invasive Species in Food Webs 3.4 Life History Ecology and Animal Migrations 3.5 Plants, Microbes, and Scaling Up 3.6 Chapter Summary Chapter 4. Isotope Chi ("I Chi") Overview 4.1 Chocolate Isotopes 4.2 Oxygen in the Sea 4.3 Equations for Isotope Chi ("I Chi") 4.4 Building an I Chi Gain-Loss Model, Step by Step 4.5 Errors in I Chi Models 4.6 Exact Equations for I Chi Models 4.7 Cows in a Pasture 4.8 Chapter Summary Chapter 5. Mixing Overview 5.1 Isotope Mixing in Food Webs 5.2 Isotope Sourcery 5.3 Mixing Mechanics 5.4 Advanced Mixing Mechanics 5.5 Mixing Assumptions and Errors or the Art and Wisdom of Using Isotope Mixing Models 5.6 River Sulfate and Mass-Weighted Mixing 5.7 A Special Muddy Case and Mixing Through Time 5.8 The Qualquan Chronicles and Mixing Across Landscapes 5.9 Dietary Mixing, Turnover, and a Stable Isotope Clock 5.10 Chapter Summary Chapter 6. Isotope Additions Overview 6.1 Addition Addiction 6.2 The Golden Spike Award for Isotopes 6.3 Chapter Summary Chapter 7. Fractionation Overview 7.1 Fractionation Fundamentals 7.2 Isotopium and Fractionation in Closed Systems 7.3 A Strange and Routine Case 7.4 A Genuine Puzzle — Fractionation or Mixing? 7.5 Cracking the Closed Systems 7.6 Equilibrium Fractionation, Subtle Drama in the Cold 7.7 A Supply/Demand Model for Open System Fractionation 7.8 Open System Fractionation and Evolution of the Earth's Sulfur Cycle 7.9 Open System Legacies 7.10 Conducting Fractionation Experiments 7.11 Chapter Summary Chapter 8. Scanning the Future Overview 8.1 The Isotope Scanner 8.2 Mangrove Maude 8.3 The Beginner's Advantage—Imagine! 8.4 Chapter Summary Appendix. Important Isotope Equations and Useful Conversions Index Supplemental Electronic Materials on the Accompanying CD A. Chapter 1 Color Figures and Cartoon Problems B. Chapter 2 Color Figures and Cartoon Problems Technical Supplement 2A: Measuring Spiked Samples Technical Supplement 2B: Ion Corrections Technical Supplement 2C: The Ratio Notation and The Power of 1 C. Chapter 3 Color Figures and Cartoons Problems D. Chapter 4 Color Figures and Cartoons Problems I Chi Spreadsheets E. Chapters 5 Color Figures and Cartoons Problems I Chi Spreadsheets F. Chapter 6 Color Figure and Cartoon Problems I Chi Spreadsheet Technical Supplement 6A: How Much Isotope Should I Add? Technical Supplement 6B: Noisy Data and Data Analysis with Enriched Samples G. Chapter 7 Color Figures and Cartoons Problems I Chi Spreadsheets Technical Supplement 7A: A Chemist's View of Isotope Effects Technical Supplement 7B: Derivations of Closed System Isotope Equations H. Chapter 8 Color Figures and Cartoons Problems I. All Problems for Chapters 1-8 J. All Answers to Problems for Chapters 1-8 K. All Figures and Cartoons L. All I Chi Spreadsheets M. A Reading List
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  • 83
    Call number: ZSP-760/A-12
    In: Terra Antartica reports
    Type of Medium: Series available for loan
    Pages: VIII, 212 S. : graph. Darst., Ill.
    ISBN: 9788888395043
    Series Statement: Terra Antartica reports 12
    Language: English
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  • 84
    Call number: ZSP-405b-07-0032
    In: JAXA Special Publication
    Type of Medium: Series available for loan
    Pages: 107 S.
    Series Statement: JAXA Special Publication SP-05-035E
    Language: English
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  • 85
    Call number: ZS-090(550) ; ZSP-168-550
    In: Berichte zur Polar- und Meeresforschung, 550
    Type of Medium: Series available for loan
    Pages: II, 289 Seiten , Illustrationen
    ISSN: 1618-3193
    Series Statement: Berichte zur Polar- und Meeresforschung 550
    Language: English
    Note: Enthaltener Beitrag: Russian-German Cooperation SYSTEM LAPTEV SEA: The Expedition COAST I / edited by Paul Overduin , Enthaltener Beitrag: The Expedition Lena 2005 / edited by Lutz Schirrmeister, Dirk Wagner, Mikhail N. Grigoriev and Dimitry Yu. Bolshiyanov , Enthaltener Beitrag: Russian-German cooperation Yakutsk - Potsdam: the expedition CENTRAL YAKUTIA 2005 / edited by Bernhard Diekmann, Sebastian Wetterich and Frank Kienast , Contents for "Russian-German Cooperation SYSTEM LAPTEV SEA: The Expedition COAST I" The Expedition COAST I 1. Background and Objectives 2. Logistics and Itinerary 3. Field Methods and Sample Recovery 3.1 Coring 3.2 Pore water analyses 3.3 Temperature profiles 4. Sample lists , Contents for "The Expedition Lena 2005" The Expedition Lena 2005 1. Introduction 2. Expedition itinerary and general logistics 3. Microbiological processes, trace gas fluxes and hydrobiology in permafrost ecosystems of the Lena Delta 3.1 Introduction 3.2 Dynamic of methane oxidising communities in permafrost soils 3.2.1 Introduction 3.2.2 Sampling procedure and field parameters 3.2.3 Pore water methane concentration 3.2.4 Sample processing and analyses 3.3 Microbial studies on nitrification from permafrost environments 3.3.1 Introduction 3.3.2 Field experiments: Impact of polygonal soil parameter on nitrification 3.4 Closed chamber measurements of carbon exchange between Arctic tundra and the atmosphere 3.5 Micrometeorological measurements of energy, water, and carbon exchange between Arctic tundra and the atmosphere 3.6 Energy and water budget of permafrost soils – long time meteorology and soil survey station on Samoylov Island 3.7 Isotopic Studies on the 13C-fractionation during CH4-production in polygonal and thermokarst lakes of the Lena Delta 3.7.1 Introduction and methods 3.7.2 Preliminary results and further plans 3.8 Hydrobiological investigations on Samoylov Island 3.8.1 Objectives 3.8.2 Research tasks 3.8.3 Material and methods 3.8.4 Preliminary results 3.9 References 4. Studies of periglacial landscape dynamics and surface characteristics studies in the western Lena Delta 4.1. Scientific background and objectives 4.2. Geological and geographical characteristics 4.3. Studies of oriented lakes and thermokarst depressions 4.3.1 Background 4.3.2 Study area 4.3.3 Topographical and geomorphological settings 4.3.3.1 Depressions 1, 2 and 3 4.3.3.2 Depression 4 4.3.3.3 Depression 5 4.3.4 Bathymetrical surveys 4.3.5 Field sampling 4.4. Characteristics and spectral properties of periglacial landforms 4.4.1 Introduction 4.4.2 Methods 4.4.3 First results 4.5. Studies of permafrost sequences for paleo-environmental reconstruction 4.5.1 The “Arga-Sands” on Turakh Island 4.5.1.1 Exposure Tur-1 4.5.1.2 Core Tur-2 4.5.1.3 Exposure T021 4.5.2 Sand sequences of Ebe Basyn Sise Island 4.5.2.1 Exposure Ebe-4 4.5.2.2 Exposure Ebe-2 4.5.2.3 Exposure Ebe-3 4.5.2.4 Exposure Ebe-5 4.5.3 Sand and Ice Complex sequences of Khardang Island 4.5.3.1 The sand deposits in the exposure Kha-1 4.5.3.2 The sequence Kha-2 4.5.3.3 Exposure Kha-3: large ice wedge and surrounding sediments 4.6 Subsurficial and bathymetrical Ground Penetrating Radar (GPR) Investigations 4.6.1 Subsurface mapping of the Arga sands stratigraphical unit 4.6.1.1 GPR survey configuration 4.6.1.2 Transects at exposure Ebe-4 4.6.1.3 Transects at exposure/borehole Tur-1/Tur-2 4.6.2 Arynskaya Channel bathymetry 4.7 Measuring of local weather and soil conditions by soil probe and weather station 4.8 Palaeontological collection of the “Mammoth” fauna from the museum of the Lena Delta Reserve 4.9 References 4.10 Appendices chapter 4 Appendix 4-1: Field spectrometry – description of measuring points and profiles (see chapter 4.4) Appendix 4-2: List of sediment samples (see chapter 4.5) Appendix 4-3: Modern soil profiles and surface samples Appendix 4-4: List of ground ice and surface water samples Appendix 4-5. Bone collection of the expedition LENA 2005 Appendix 4-6: Bone collection of Lena Delta Reserve Tiksi (see chapter 4.8) 5. Holocene ice wedges of the 1st Lena terrace 5.1 Introduction 5.2 Outcrops 5.2.1 Outcrop 1 5.2.2 Outcrop 2 5.2.3 Geocryolithology on Samoylov Island: General impressions 5.2.4 Outcrop 3 5.2.5 Outcrop 4 5.2.6 Outcrop 5 5.2.7 Outcrop 6 5.2.8 Outcrop 7 5.2.9 Outcrop 8 5.2.10 Outcrop 9 5.2.11 Outcrop 10 5.2.12 Pingo at Olenyekskaya Channel 5.2.13 Summary 5.3 Studies on recent cryogenesis on Samoylov Island 5.4 References 5.5 Appendices chapter 5 Appendix 5-1: Ice sample list Appendix 5-2: List of sediment samples and ice content measurement Appendix 5-3: List of water samples 6. Report of the hydrological work in the Lena River Delta in August 2005 6.1 Introduction 6.2 Methods 6.3 Preliminary results 6.4 Conclusion , Contents for "Russian-German cooperation Yakutsk - Potsdam: the expedition CENTRAL YAKUTIA 2005" Central Yakutia 2005 1. Expedition ‘Verkhoyansk 2005’ • Limnogeological studies at Lake Billyakh, Verkhoyansk Mountains, Yakutia 1.1 Introduction 1.2 Regional Setting of Lake Billyakh 1.3 Itinerary 1.4 Methods 1.4.1 Bathymetric measurements 1.4.2 Water sampling and measurements 1.4.3 Sediment coring 1.5 Results 1.5.1 Bathymetry 1.5.2 Water profiles 1.5.3 Sediment cores 1.6 Outlook 1.7 References 2 Limnological studies in Central and North-east Yakutia in summer 2005 2.1 Introduction 2.2 Study sites and lake types 2.3 Material and methods 2.4 Preliminary results 2.5 Outlook 2.6 References 2.7 Appendices Appendix 2-1: General characteristics and geographical position of the studied lakes in Central and North-east Yakutia Appendix 2-2: Some properties of the studied lakes in Central and North-east Yakutia, obtained during the fieldwork (unfilled table cells imply no data or information) Appendix 2-3: Sample list for further analyses on sediments, hydro-chemistry, water isotopes and aquatic organisms Appendix 2-4: Occurrence of zoobenthos organisms in the sampled Central-Yakutian lakes in July 2005 3. Vegetation studies in extremely continental regions of Yakutia 3.1 Introduction 3.2 Study areas and investigated vegetation types 3.3 Material and methods 3.4 Preliminary results 3.5 Appendix 3-1: Metadata of studied vegetation records
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  • 86
    Call number: ZSP-405b-07-0033
    In: JAXA Special Publication
    Type of Medium: Series available for loan
    Pages: 32 S.
    Series Statement: JAXA Special Publication SP-05-036E
    Language: English
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  • 87
    Call number: ZSP-403-290
    In: Jare Data Reports
    Type of Medium: Series available for loan
    Pages: 7 S. : überw. graph. Darst., Ill.
    Series Statement: Jare Data Reports 290 : Marine Biology 34
    Language: English
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  • 88
    Call number: ZSP-403-284
    In: Jare Data Reports
    Type of Medium: Series available for loan
    Pages: 16 S. : überw. graph. Darst. u. Ill.
    Series Statement: Jare Data Reports 284 : Marine Biology 32
    Language: English
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  • 89
    Call number: ZSP-403-294
    In: Jare Data Reports
    Type of Medium: Series available for loan
    Pages: 55 S. : überw. graph. Darst.
    Series Statement: JARE data reports 294 : Oceanography 29
    Language: English
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  • 90
    Call number: ZSP-403-293
    In: Jare Data Reports
    Type of Medium: Series available for loan
    Pages: 59 S. : überw. graph. Darst.
    Series Statement: JARE data reports 293 : Oceanography 28
    Language: English
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  • 91
    Call number: ZSP-403-298
    In: Jare Data Reports
    Type of Medium: Series available for loan
    Pages: 92 S. : überw. graph. Darst.
    Series Statement: Jare Data Reports 298 : Glaciology 32
    Language: English
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  • 92
    Call number: ZSP-403-297
    In: Jare Data Reports
    Type of Medium: Series available for loan
    Pages: 38 S. : überw. graph. Darst.
    Series Statement: Jare Data Reports 297 : Glaciology 31
    Language: English
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  • 93
    Call number: ZSP-760/A-13
    In: Terra Antartica reports
    Type of Medium: Series available for loan
    Pages: V, 110 S. : graph. Darst., Ill.
    ISBN: 9788888395050
    Series Statement: Terra Antartica reports 13
    Language: English
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  • 94
    Call number: ZSP-403-299
    In: Jare Data Reports
    Type of Medium: Series available for loan
    Pages: 101 S. : überw. graph. Darst.
    Series Statement: Jare Data Reports 299 : Seismology 41
    Language: English
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  • 95
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Cambridge University Press
    Call number: AWI A5-08-0018
    Description / Table of Contents: Mesoscale weather systems are responsible for numerous natural disasters, such as damaging winds, blizzards, and flash flooding. A fundamental understanding of the underlying dynamics involved in these weather systems is essential in forecasting their occurrence. This book provides a systematic approach to this subject, and covers a more complete spectrum of mesoscale dynamics than other texts. The opening chapters introduce the basic equations governing mesoscale weather systems and their approximations. The subsequent chapters cover four major areas of mesoscale dynamics: wave dynamics, moist convection, front dynamics, and mesoscale modeling. Wave dynamics covers wave generation and maintenance, orographically forced flow, and thermally forced flow. The moist convection part covers mesoscale instabilities, isolated storms, mesoscale convective systems, orographic precipitation, and introduces tropical cyclone dynamics. The dynamics of synoptic-scale fronts, mesoscale fronts, and jet streaks are discussed in the front dynamics part. The last part of the book introduces basic numerical modeling techniques, parameterizations of major physical processes, and the foundation for mesoscale numerical weather prediction. Mesoscale Dynamics is an ideal reference on this topic for researchers in meteorology and atmospheric science. This book could also serve as a textbook for graduate students, and it contains over 100 problems, with password-protected solutions. Modeling projects, providing hands-on practice for building simple models of stratified fluid flow from a one-dimensional advection equation, are also described.
    Type of Medium: Monograph available for loan
    Pages: XIII, 630 S. : Ill., graph. Darst., Kt.
    Edition: 1. publ.
    ISBN: 9780521808750
    Language: English
    Note: Contents: Preface. - 1 Overview. - 1.1 Introduction. - 1.2 Definitions of atmospheric scales. - 1.3 Energy generation and scale interactions. - 1.4 Predictability. - References. - 2 Governing equations for mesoscale motions. - 2.1 Introduction. - 2.2 Derivation of the governing equations. - 2.3 Approximations to the governing equations. - References. - Problems. - 3 Basic wave dynamics. - 3.1 Introduction. - 3.2 Basic wave properties. - 3.3 Soundwaves. - 3.4 Shallow water waves. - 3.5 Pure gravity waves. - 3.6 Inertia-gravity waves. - 3.7 Wave reflection levels. - 3.8 Critical levels. - Appendix 3.1. - References. - Problems. - 4 Mesoscale wave generation and maintenance. - 4.1 Introduction. - 4.2 Wave generation mechanisms. - 4.2.1 Density impulses and moist convection. - 4.2.2 Mesoscale instabilities. - 4.2.3 Geostrophic adjustment. - 4.2.4 Nonlinear interactions. - 4.3 Wave maintenance mechanisms. - 4.3.1 Linear wave ducting mechanism. - 4.3.2 Solitary wave mechanism. - 4.3.3 Wave-CISK mechanism. - 4.4 Energy propagation and momentum flux. - References. - Problems. - 5 Orographically forced flows. - 5.1 Flows over two-dimensional sinusoidal mountains. - 5.2 Flows over two-dimensional isolated mountains. - 5.2.1 Uniform basic flow. - 5.2.2 Basic flow with variable Scorer parameter. - 5.2.3 Trapped lee waves. - 5.3 Nonlinear flows over two-dimensional mountains. - 5.3.1 Nonlinear flow regimes. - 5.3.2 Generation of severe downslope winds. - 5.4 Flows over three-dimensional mountains. - 5.4.1 Linear theory. - 5.4.2 Generation of lee vortices. - 5.5 Flows over larger mesoscale mountains. - 5.5.1 Rotational effects. - 5.5.2 Lee cyclogenesis. - 5.5.3 Orographic influence on cyclone track. - 5.6 Other orographic effects. - 5.6.1 Effects on frontal passage. - 5.6.2 Coastally trapped disturbances. - 5.6.3 Cold-air damming. - 5.6.4 Gap flow. - Appendix 5.1. - References. - Problems. - 6 Thermally forced flows. - 6.1 Two-dimensional flows. - 6.1.1 Steady flows over a sinusoidal heat source. - 6.1.2 Steady flows over an isolated heat source. - 6.2 Transient flows. - 6.2.1 Flow responses to pulse heating. - 6.2.2 Flow responses to steady heating. - 6.3 Applications to mesoscale circulations. - 6.3.1 Density current formation and propagation. - 6.3.2 Heat island circulations. - 6.3.3 Moist convection. - 6.3.4 Gravity wave generation and propagation. - 6.4 Effects of shear, three dimensionality, and rotation. - 6.4.1 Two-dimensional shear flows. - 6.4.2 Three-dimensional nonrotating flows. - 6.4.3 Three-dimensional rotating flows. - 6.5 Dynamics of sea and land breezes. - 6.5.1 Linear theories. - 6.5.2 Nonlinear numerical studies. - 6.6 Dynamics of mountain-plains solenoidal circulations. - Appendix 6.1. - References. - Problems. - 7 Mesoscale instabilities. - 7.1 Wave energy transfer through instabilities. - 7.2 Integral theorems of stratified flow. - 7.2.1 Governing equations. - 7.2.2 Miles' theorem. - 7.2.3 Howard's semicircle theorem. - 7.3 Static, conditional, and potential instabilities. - 7.3.1 Static instability. - 7.3.2 Conditional instability. - 7.3.3 Potential instability. - 7.4 Kelvin-Helmholtz instability. - 7.5 Inertial instability. - 7.6 Symmetric instability. - 7.6.1 Dry symmetric instability. - 7.6.2 Moist symmetric instability. - 7.7 Baroclinic instability. - References. - Problems. - 8 Isolated convective storms. - 8.1 Dynamics of single-cell storms and downbursts. - 8.2 Dynamics of multicell storms. - 8.3 Effects of shear and buoyancy. - 8.3.1 Effects of shear on cold outflow. - 8.3.2 Effects of buoyancy. - 8.4 Dynamics of supercell storms. - 8.4.1 General characteristics. - 8.4.2 Effects of unidirectional shear. - 8.4.3 Storm splitting. - 8.4.4 Storm rotation and propagation. - 8.4.5 Effects of directional shear. - 8.5 Tornado dynamics. - 8.5.1 Supercell tornadogenesis. - 8.5.2 Nonsupercell tornadogenesis. - 8.5.3 Tornado vortex dynamics. - References. - Problems. - 9 Mesoscale convective systems. - 9.1 Squall lines and rainbands. - 9.1.1 Squall line classifications. - 9.1.2 Formation mechanisms. - 9.1.3 Maintenance mechanisms. - 9.1.4 Squall line movement. - 9.1.5 Rainbands. - 9.2 Mesoscale convective complexes. - 9.2.1 General characteristics. - 9.2.2 Formation and development mechanisms. - 9.3 Tropical cyclones. - 9.3.1 General characteristics. - 9.3.2 Tropical cyclogenesis. - 9.3.3 Intensity and mesoscale structure. - 9.3.4 Tropical cyclone movement. - References. - Problems. - 10 Dynamics of fronts and jet streaks. - 10.1 Kinematics of frontogenesis. - 10.2 Dynamics of two-dimensional frontogenesis. - 10.2.1 Geostrophic momentum approximation. - 10.2.2 Frontogenesis and cross-frontal circulations. - 10.3 Frontogenesis and baroclinic waves. - 10.4 Moist and frictional effects on frontogenesis. - 10.5 Other types of fronts. - 10.5.1 Upper-level frontogenesis. - 10.5.2 Drylines. - 10.6 Jet streak dynamics. - 10.6.1 Upper-level jet streaks. - 10.6.2 Low-level jets. - References. - Problems. - 11 Dynamics of orographic precipitation. - 11.1 Orographic influence on climatological distribution of precipitation. - 11.2 Orographic modification of preexisting disturbances. - 11.2.1 Passage of troughs. - 11.2.2 Passage of midlatitude cyclones and fronts. - 11.2.3 Passage of tropical cyclones. - 11.2.4 Common ingredients of orographic precipitation. - 11.3 Formation and enhancement mechanisms. - 11.3.1 Stable ascent mechanism. - 11.3.2 Release of moist instabilities. - 11.3.3 Effects of mountain geometry. - 11.3.4 Combined thermal and orographic forcing. - 11.3.5 Seeder-feeder mechanism. - 11.3.6 Dynamical-microphysical interaction mechanism. - 11.4 Control parameters and moist flow regimes. - 11.4.1 Control parameters. - 11.4.2 Moist flow regimes. - References. - 12 Basic numerical methods. - 12.1 Introduction. - 12.2 Finite difference approximations of derivatives. - 12.3 Finite difference approximations of the advection equation. - 12.3.1 Two-time-level schemes. - 12.3.2 Three-time-level schemes. - 12.4 Implicit schemes. - 12.5 Semi-Lagrangian methods. - Appendix 12.1. - References. - Problems. - Modeling projects. - 13 Numerical modeling of geophysical fluid systems. - 13.1 Grid systems and vertical coordinates. - 13.1.1 Grid systems. - 13.1.2 Vertical coordinates. - 13.2 Boundary conditions. - 13.2.1 Lateral boundary conditions. - 13.2.2 Upper boundary conditions. - 13.2.3 Lower boundary conditions. - 13.3 Initial conditions and data assimilation. - 13.4 Nonlinear aliasing and instability. - 13.5 Modeling a stratified fluid system. - 13.6 Predictability and ensemble forecasting. - References. - Problems. - Modeling project. - 14 Parameterizations of physical processes. - 14.1 Reynolds averaging. - 14.2 Parameterization of planetary boundary layer processes. - 14.2.1 Parameterization of the surface layer. - 14.2.2 Parameterization of the PBL. - 14.3 Parameterization of moist processes. - 14.3.1 Parameterization of microphysical processes. - 14.3.2 Cumulus parameterization. - 14.4 Parameterizations of radiative transfer processes. - 14.4.1 Introduction. - 14.4.2 Longwave radiation. - 14.4.3 Shortwave radiation. - References. - Problems. - Appendices. - A. List of symbols. - B. Nomenclature. - Index.
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